I like "Cameltoe" by Fannypack.
But the best(my favorite) rap song is this one my older brother did with a friend. It's called "I Ain't Goin' (I'm stayin' Here)" and it is the funniest damn thing I've ever heard. I don't know what the fuck they were on when they recorded it, but it's LOL. "
I ain't goin'... I'm stayin' here!"
It's funny because they were serious about it.