thump Definition

thump
noun

1. A heavy blow, or the dull sound of a blow.

Thesaurus: thud, bang, crash, clunk, bang, knock, cuff, whack, wallop, blow.

verb thumped, thumping

tr & intr
1. To beat or strike with dull-sounding heavy blows.

Thesaurus: pound, throb, beat, thrash, knock, hit, batter, rap, crash, lambaste, strike, smack.
intr
2. To throb or beat violently.
3. To play (a tune), especially on a piano, by pounding heavily on the keys.

Form: thump something out (also)
4. To move with heavy pounding steps.

Form: thump along (usually)
Form: thump around

Etymology: 16c: imitating the sound.