The acronym for "Pee In Her Butt", generally used as an answer to a question that someone can't answer, or to express the desire to engage in anal intercourse with a sexually appealing individual.
Dude, my girlfriend isn't talking to me, what do I do?
Pihb
Hey check out that girl over there, I'd pihb her so hard!
Was coined by Berman on LS2.com, it means Pee In Her Butt, as in anal sex.
Damn that girl is hot, I'd PIHB.
1: the act of "pihb"; a girl with pihbtential
"Man,look at that pihb"
"I'd pihb her"
"Def"
A sexual act. "PIHB" in this instance stands for "pee in her butt".
I ordered a Mr. PIHB from my weekly prostitute.