Meaning

• 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.

  "Where the thump have you been?!"

Meaning

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

• To cause to make a thumping sound.

  "The cat thumped its tail in irritation."

• To thud or pound.

• To throb with a muffled rhythmic sound.

  "Dance music thumped from the nightclub entrance."