• Webster's Revised Unabridged Dictionary
    • n Wapper (Zoöl) A gudgeon.
    • v. t. & i Wapper To cause to shake; to tremble; to move tremulously, as from weakness; to totter.
    • ***
Century Dictionary and Cyclopedia
    • wapper To move tremulously; totter; blink.
    • ***
Chambers's Twentieth Century Dictionary
    • n Wapper wap′ėr a gudgeon.
    • v.i Wapper wap′ėr to move tremulously
    • ***


Webster's Revised Unabridged Dictionary
freq. of wap, v.; cf. dial. G. wappern, wippern, to move up and down, to rock


In literature:

Mr. Wappers permitted us to see his own painting-room.
"A Residence in France" by J. Fenimore Cooper
Wappers, Baron Gustavus, 199, 202.
"A Text-Book of the History of Painting" by John C. Van Dyke
She has but one misfortune, and that's a wapper.
"John Bull" by George Colman