*whap*

{ }, v. i. [ Cf. OE. quappen to palpitate, E. quob, quaver, wabble, awhape, wap. ] To throw one's self quickly, or by an abrupt motion; to turn suddenly; as, she whapped down on the floor; the fish whapped over. Bartlett. [ 1913 Webster ]

☞ This word is used adverbially in the north of England, as in the United States, when anything vanishes, or is gone suddenly; as, whap went the cigar out of my mouth. [ 1913 Webster ]

{ }, v. t. [ imp. & p. p. Whapped p. pr. & vb. n. Whapping. ] To beat or strike. [ 1913 Webster ]

{ }, n. A blow, or quick, smart stroke. [ 1913 Webster ]

{ }, n. [ See Whap. ] Something uncommonly large of the kind; something astonishing; -- applied especially to a bold lie. Now (1998) usually spelled whopper. [ Colloq. ] [ 1913 Webster +PJC ]