thump

Concise Oxford English Dictionary © 2008 Oxford University Press:
thump/θʌmp/

▶verb

• 1 hit heavily, especially with the fist or a blunt implement.

  ■ put down forcefully, noisily, or decisively.

  ■ (of a person's heart or pulse) beat or pulsate strongly.

• 2 (thump something out) play a tune on a piano enthusiastically but heavy-handedly.

• 3 informal defeat heavily.

▶noun a dull, heavy blow or noise.

– derivatives
thumper noun.

– origin C16: imitative.