• WordNet 3.6
    • adj bluff bluntly direct and outspoken but good-natured "a bluff but pleasant manner","a bluff and rugged natural leader"
    • adj bluff very steep; having a prominent and almost vertical front "a bluff headland","where the bold chalk cliffs of England rise","a sheer descent of rock"
    • v bluff frighten someone by pretending to be stronger than one really is
    • v bluff deceive an opponent by a bold bet on an inferior hand with the result that the opponent withdraws a winning hand
    • n bluff the act of bluffing in poker; deception by a false show of confidence in the strength of your cards
    • n bluff pretense that your position is stronger than it really is "his bluff succeeded in getting him accepted"
    • n bluff a high steep bank (usually formed by river erosion)
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: Per capita, it is safer to live in New York City than it is to live in Pine Bluff, Arkansas.
    • Bluff A game at cards; poker.
    • Bluff A high, steep bank, as by a river or the sea, or beside a ravine or plain; a cliff with a broad face. "Beach, bluff , and wave, adieu."
    • Bluff Abrupt; roughly frank; unceremonious; blunt; brusque; as, a bluff answer; a bluff manner of talking; a bluff sea captain. "Bluff King Hal.""There is indeed a bluff pertinacity which is a proper defense in a moment of surprise."
    • Bluff An act of bluffing; an expression of self-confidence for the purpose of intimidation; braggadocio; as, that is only bluff, or a bluff .
    • Bluff Having a broad, flattened front; as, the bluff bows of a ship. "Bluff visages."
    • Bluff Rising steeply with a flat or rounded front. "A bluff or bold shore.""Its banks, if not really steep, had a bluff and precipitous aspect."
    • Bluff Surly; churlish; gruff; rough.
    • v. i Bluff To act as in the game of bluff.
    • Bluff (Poker) To deter (an opponent) from taking the risk of betting on his hand of cards, as the bluffer does by betting heavily on his own hand although it may be of less value.
    • Bluff To frighten or deter from accomplishing a purpose by making a show of confidence in one's strength or resources; as, he bluffed me off.
    • ***
Century Dictionary and Cyclopedia
    • bluff Having or presenting a broad, flattened front, as a ship with broad bows and nearly vertical stem.
    • bluff Rising abruptly and boldly, as a high bank on the shore of a sea, lake, or river; presenting a bold and nearly perpendicular front, as a coastline or a range of low hills.
    • bluff Broad and full: specially applied to a full countenance, indicative of frankness and good humor.
    • bluff Hence Rough and hearty; plain and frank; somewhat abrupt and unconventional in manner.
    • bluff Blustering; pompous; surly; churlish.
    • n bluff A hill, bank, or headland with a steep, broad face; a high bank presenting a steep or nearly perpendicular front, especially one on the shore of a sea, lake, or river; also, a steep rise between bottom-land and a higher table-land.
    • bluff To blindfold or hoodwink.
    • bluff In the game of poker, to deceive or impose upon (an opponent) by betting heavily on a worthless hand, or by acting in such a way as to cause the other players to believe that one's hand is stronger than it really is, in order to make them throw up their cards or stay out of the betting.
    • bluff Hence To daunt or deter from the accomplishment of some design by boastful language or demeanor; repulse or frighten off by assuming a bold front, or by a make-believe show of resources, strength, etc.: frequently followed by off: as, to bluff off a dun.
    • bluff In the game of poker, to bet heavily and with an air of confident assurance on a poor hand, in order to deceive an opponent and cause him to throw up his cards.
    • bluff Hence To assume a bold, boastful front, so as to hoodwink an opponent as to one's real resources, strength, etc.
    • n bluff A blinker for a horse.
    • n bluff A game at cards; poker.
    • n bluff The act of deceiving or influencing, as in the game of poker, by a show of confident assurance and boastful betting or language; hence, language or demeanor intended to blind, frighten, or daunt an opponent in anything.
    • n bluff An isolated group of trees on the prairie.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Bluff bluf blustering: rough and hearty in manners: outspoken: steep
    • n Bluff a high steep bank overlooking the sea or a river: the act of bluffing at cards, as in poker—hence any kind of boastful swagger intended to impose upon another:
    • n Bluff (slang) an excuse
    • ***


  • Source Unknown
    Source Unknown
    “When people are taken out of their depths they lose their heads, no matter how charming a bluff they may put up.”
  • David Seabury
    “Your desires and true beliefs have a way of playing blind man's bluff. You must corner the inner facts...”


Webster's Revised Unabridged Dictionary
Cf. OD. blaf, flat, broad, blaffaert, one with a broad face, also, a boaster; or G. verblüffen, to confuse, LG. bluffen, to frighten; to unknown origin


In literature:

The line-rider watched him out of sight, then slithered down the face of the bluff to the sandy wash.
"Oh, You Tex!" by William Macleod Raine
Wisconsin, we think of you as we traverse these bluffs.
"The History of the American Expedition Fighting the Bolsheviki" by Joel R. Moore
He thrust his head out, and found he was looking down the face of the bluff straight into the stream far below.
"Frank Merriwell's Bravery" by Burt L. Standish
I'm going to Bluff Head this afternoon.
"Janet of the Dunes" by Harriet T. Comstock
Scarce any stream of South-Western Texas but runs between bluffs.
"The Death Shot" by Mayne Reid
The cliff to which Carlos had pointed was part of the bluff that hemmed in the valley.
"The White Chief" by Mayne Reid
Sometimes, as they journeyed, the red bluffs beetled up above them, tall and frowning.
"Sally of Missouri" by R. E. Young
Steve reached the log home in the bluff at the same moment as a horseman reined up at his door.
"The Heart of Unaga" by Ridgwell Cullum
Bluffe had not been in the land of the living.
"The Comedies of William Congreve Volume 1 [of 2]" by William Congreve
There is some one riding direct for the bluff.
"Tom Gerrard 1904" by Louis Becke

In poetry:

He knew the secrets of the grass,
The burden of the hour,
He saw the fierce, bluff bumblebee
Touse many a clover flower.
"Pan In The Orchard" by Maurice Thompson
Let me down easy, reader, say!
Don't run the bluff that you are on,
Or proudly scoff at every toff
Who rattles off a rag-time con.
"An Inside Con to Refined Guys" by Wallace Irwin
Still ran the stream to the river,
And river and ocean joined;
And there were the bluffs and the blue sea-line,
And cold north hills behind.
"Cobbler Keezar's Vision" by John Greenleaf Whittier
Old Capting Pink of the Peppermint,
Though kindly at heart and good,
Had a blunt, bluff way of a-gittin` his say
That we all of us understood.
"Captain Pink of the Peppermint" by Wallace Irwin
From far lagoons be-plumed with palm,
By cove and cape, by bluff and bay,
Through depths of storm, through vasts of calm,
They speed their way.
"Wild Geese" by Clinton Scollard
We all have our follies: what then?
Let us note them, and never look bluff!
Without any caressing at all,
They will cling to us closely enough.
"To A Young Gentleman" by Matilda Betham

In news:

Amber Alert issued for missing Poplar Bluff girl.
Poplar Bluff latest to add anti-meth strategy.
Law enforcement officers search for sex offender after child taken in Poplar Bluff .
Poplar Bluff girl found, sex offender is in custody.
Poplar Bluff Police have confirmed that Abigail Bertholf has been found, and Jeffrey Shelton is in police custody.
Poplar Bluff Police say suspect Jeffrey Dean Shelton was arrested just before 2 pm Wednesday at the intersection of US Highway 67 and Missouri Route 160.
Lady Hawks dispatch Poplar Bluff , Scott City passes Saxony.
Led by seven solid innings from starting pitcher Kristi Brucker, the Kelly Lady Hawks defeated Poplar Bluff on Tuesday, 9-2.
Sikeston freshman Earnest Fobbs ran for a staggering 300 yards and two touchdowns, but it wasn't enough to tackle Poplar Bluff Monday during the Bulldogs' freshman football game in Poplar Bluff .
Fobbs rushes for 300 yards in 22-20 loss to Poplar Bluff .
Poplar Bluff earned their advantage early and led 8-0 at halftime.
Sikeston escapes Poplar Bluff , 19-7.
Sikeston's Aundrea Golden catches a touchdown pass against Poplar Bluff on Friday night at Sikeston Public Schools Stadium.
Tragedy in Poplar Bluff as two teenaged girls die after playing a game called "Ghost Train.".
Dexter defeats Poplar Bluff for 3rd place.

In science:

Second, and more importantly, the Nash-Shapley model also illustrates the importance of defending against the bluff, which represents strength when one is in fact weak, via slow-playing, which represents weakness when one is in fact strong, via an ”optimal slow-playing frequency”.
Quantized Poker
There are four such functions and the two that survive the process of eliminating of dominated strategies are playing directly, that is passing when holding an L and betting when holding an H (denoted in the tables as s1 ), and running a possible bluff, i.e. betting holding an L or an H (denoted in the tables as s2 ).
Quantized Poker
The poker lingo refers to this as snapping off player 3’s bluff and an early action player’s slowplaying strategy as sandbagging.
Quantized Poker
Note that attempting to snap off bluffs is not without risk, as player 3 may well pass out the hand when holding L and deny to players 1 or 2 their sure gain of at least half of players 3’s ante in the situation where at least one of players 1 and 2 bet holding H and player 3 holds L.
Quantized Poker
On the other hand, the rewards of successfully snapping off a bluff are great as if player 3 holding L does attempt a steal in response to a slowplay by one of players 1 or 2, he loses the maximum possible of an ante plus a bet to that player.
Quantized Poker