/hwomp, womp/ , Informal.
n.
1. a loud, heavy blow, slap, bang, or the like: He fell with an awful whomp.
v.t.
2. to defeat (a person, opposing team, etc.) decisively: We whomped the visiting team.
3. to slap or strike: to whomp the kids.
v.i.
4. to make a banging or slapping noise: Guns whomped in the distance.
5. whomp up , Informal.
a. to make or create quickly: to whomp up a new set of guidelines.
b. to stir up; rouse: to whomp up public approval.
[ 1925-30; imit. ]