Beating your girlfriend and or wife.
Drish: Hey where has Tom been
Robably: He went to jail for thumpin on his meat. I called the cops so she didn't end up hurt too bad.
Drish: Oh no! I hope she is ok.
basically bouncing on it (by it I mean a peanitz). Like physically pounding it but it's not going in, it's just squishing like lowkey. Like dry humping but more...
While you're not liking his instagram story I'm straight thumpin' on it.
or: Newflash pal I've been thumpin' HARD (a chilla would say)
To have one of your nuts hit the clitoris during intercourse.
Bro, I was banging this girl doggy style last night with such elegance that it had me nut thumpin her so hard she stored my name as thumper in her phone.