from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A loud, heavy blow or thud.
- transitive v. To hit or strike.
- transitive v. To defeat soundly; trounce: whomped the opposing team.
- transitive v. To prepare or make, especially with little effort. Often used with up: "Meanwhile, you whomp up yams and spuds and bake your pies” ( Garrison Keillor).
- intransitive v. To hit or strike with a whomp.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. Hit extremely hard.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. beat overwhelmingly
- v. hit with the hand
Perhaps a variant of whip, similar to whup. (Wiktionary)