Bi Until Graduation (B.U.G.): term for numerous college females who frequently engage in (usually drunken) sexual activity with other college females, generally doing do for an audience or camera. After college however, they refuse any sort of activity again, calling it "gross" and that in college they were just "experimenting".
"Whoa, I heard Vanessa made out with Carly last night at Rick's party!"
"Yeah dude, she's not a lesbian though, just a B.U.G. She's just doing it for attention."