• Webster's Revised Unabridged Dictionary
    • interj Pshaw Pish! pooch! -- an exclamation used as an expression of contempt, disdain, dislike, etc.
    • v. i Pshaw To express disgust or contemptuous disapprobation, as by the exclamation “ Pshaw!” "The goodman used regularly to frown and pshaw wherever this topic was touched upon."
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Century Dictionary and Cyclopedia
    • pshaw An exclamation implying contempt, disdain, impatience, or a sense of absurdity.
    • pshaw To utter the interjection pshaw; evince contempt or impatience by such interjections as pshaw.
    • ***
Chambers's Twentieth Century Dictionary
    • interj Pshaw shaw expressing contempt
    • v.i Pshaw to express contempt, as with this word
    • n Pshaw shaw an upright cylindrical hat once worn by women in Spain.
    • ***


Webster's Revised Unabridged Dictionary
Of imitative origin


In literature:

Oh, pshaw, we're out!
"Tabitha's Vacation" by Ruth Alberta Brown
His heart sank a little, but pshaw!
"Old Man Savarin and Other Stories" by Edward William Thomson
But, pshaw, that clock never keeps time.
"Rosemary" by Josephine Lawrence
I might have escaped any day, but, pshaw!
"Agatha's Husband A Novel" by Dinah Maria Craik (AKA: Dinah Maria Mulock)
Oh, pshaw, it's nothing, anyway!
"Patty's Social Season" by Carolyn Wells
One sailor cried out: 'Oh, pshaw!
"World's War Events, Vol. I" by Various
Pshaw, they all begin that way.
"Vixen, Volume II." by M. E. Braddon
It cannot be pished and pshawed away, by you or me or another.
"Margarita's Soul" by Ingraham Lovell
One sailor cried out: 'Oh, pshaw!
"New York Times Current History; The European War, Vol 2, No. 4, July, 1915" by Various
And I don't want any Oh-pshawing.
"The Place of Honeymoons" by Harold MacGrath

In news:

Marcy, NY (WIBX) – How do you pronounce pshaw .