What is the meaning of Thump?

A blow that produces a muffled sound.

The sound of such a blow; a thud.

Used to replace the vulgar or blasphemous element in "what the hell" and similar phrases.

To hit (someone or something) as if to make a thump.

To cause to make a thumping sound.

To thud or pound.

To throb with a muffled rhythmic sound.

Source: wiktionary.org