whop
, wop
or less commonly whap
(wɒp) informal verb whops, whopping or whopped 1 (transitive) to strike, beat, or thrash
2 (transitive) to defeat utterly
3 (intransitive) to drop or fall
▷ noun 4 a heavy blow or the sound made by such a blow
[C14: variant of wap, perhaps of imitative origin]