My girls love potty humor. I can't stand it.
Apparently my DH thinks it's funny in private, but we forbid it in public. When I say "potty humor" it's probably pretty innocent. Just on Sunday, in fact, I joked to Chad that the girls seem to have their own little game of "Six Degrees of Separation" -- from the first giggle, it only takes six sentences for one of the following words to come out of their mouths: bootie, bottom, t*nkle, etc...
He regularly engages them in "your bootie is soooooo big, that...." joke contests.
Arghhhh....