Pronunciation: (wol'up), [key]
1. to beat soundly; thrash.
2. Informal.to strike with a vigorous blow; belt; sock: After two strikes, he walloped the ball out of the park.
3. Informal.to defeat thoroughly, as in a game.
4. Chiefly Scot.to flutter, wobble, or flop about.
1. Informal.to move violently and clumsily: The puppy walloped down the walk.
2. (of a liquid) to boil violently.
3. Obs.to gallop.
1. a vigorous blow.
2. the ability to deliver vigorous blows, as in boxing: That fist of his packs a wallop.
a. the ability to effect a forceful impression; punch: That ad packs a wallop.
b. a pleasurable thrill; kick: The joke gave them all a wallop.
4. Informal.a violent, clumsy movement; lurch.
5. Obs.a gallop.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.