do you think the 'i banged your mom joke" is funny or stupid ?

If they use it at the right time or put a creative spin on it it has potential

It depends on who's saying it and how... Most people who say it don't use it cleverly so it just becomes boring. The remainder of the time it has it's moments..

I can usually tell when someone's joking. That said, nobody I know would say that.

It's just stupid.

Itsnstupid

Stupid