Meaning of “thump” - Learner’s Dictionary

thump

verb uk us /θʌmp/
HIT [ T ] UK

to hit someone with your fist (= closed hand)

NOISE [ I, T ]

to hit something and make a noise:

She thumped the tambourine.
HEART [ I ]

If your heart thumps, it beats very quickly because you are excited or frightened:

She stood outside the room, her heart thumping.
thump noun [ C ]

(Definition of “thump” from the Cambridge Learner’s Dictionary © Cambridge University Press)