A term used to describe an incredibly ugly person; someone you'd have to
turn around to fuck. For people who aren't into anal, this is somewhat
drastic.
Can also be shortened to "
butt fugly".
Robin: Dude, look at the chick! She's so
butt-fucking ugly!
Oliver: I dunno, man, I think I'd just
paper bag her.
James: Hey, fuck off, dude! That's my sister!
Oliver: Family resemblance, eh?