This is more of a whinge, but it is about spelling!
Crutch
Crotch
2 different words. Different sounds. Different spelling. Its really not funny to make smutty jokes about innocent comments (e..g. "Can i try out your crutch?" )
OK, you can allow one for novelty, but I strongly suspect that most of these folks don't know they are different words. Not sure if I'm more annoyed by the repitition, or by the ignorance!