- 1[transitive, intransitive] thump (somebody/something) (+ adv./prep.) to hit someone or something hard, especially with your closed hand He thumped the table angrily. She couldn't get her breath and had to be thumped on the back. (informal) I'll thump you if you say that again. (figurative) He thumped out a tune (= played it very loudly) on the piano.
- 2[intransitive, transitive] to fall on or hit a surface hard, with a loud dull sound; to make something do this + adv./prep. A bird thumped against the window. thump something + adv./prep. He thumped the report down on my desk.
- 3 [intransitive] to beat strongly My heart was thumping with excitement.
NAmE//θʌmp//Verb Forms present simple I / you / we / they thump
he / she / it thumps
past simple thumped
-ing form thumping