When one is drunk at Mc Donalds and recieves a blumpkin.
Your girlfriend is such a slut she gave me a Drunken' Mc Blumpkin after we were done eating.
Tits found on a woman that one wouldn't ordinarily even consider having sex with if not for her exceptionally large breasts; the woman usually is of the very rotund variety.
"Dude she was a fuckin' butterface and weighed in at a deuce and a half but I just had to see those flubberjuggets."