thump verb
1 hit sb/sth with your fist
ADV. hard He thumped Jack hard in the face. | down He thumped his fist down onto the table.
PREP. with She thumped the desk with her fist.
2 of the heart
ADV. hard, heavily, loudly, painfully, wildly
VERB + THUMP begin to Her heart began to thump wildly in her chest.
PREP. against He spun round, his heart thumping against his ribs.