Petey Wheatstraw: The Devil's Son In Law
It's a blaxploitation horror comedy with some martial arts stuff thrown in for good measure. It somehow manages to be not very funny, not very scary, and not very actiony.
It has lots of painfully unfunny gags, a plot that drags on interminably, features a stand up comic getting revenge on his murderers in a really stupid way, Then even though that feels like it should be the climax, the movie just keeps going.
You can currently watch it free on Tubi TV, so here's a link:
Mike Tanner commented
So bad it's good!