Voicemail

Yo mama so stupid, she tried to talk into an envelope to send a voicemail.

Yo Mama - Under 17

Yo mama so stupid when she went to go see a movie, it said "under 17 not allowed," so she left to get 16 more friends to go with her.  

Sex Change

This guy decides to get a sex change. So he goes to the doctors and has the thing done. A couple of weeks later he was talking to one of his old buddies about it. "Gee, it must have really hurt when they shot all that silicon into your chest to make your breasts." "Not really, I hardly felt it." "Well, it must have really hurt when they chopped off your manhood!" "Nope, I didn't really feel it either. The only thing that really hurt was when they drilled a hole in my skull and sucked out half my brain!"