well i had no clue what this was all about so i tried google...
PIHB - 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.
Example: Dude, my girlfriend isn't talking to me, what do I do?
Answer: Pihb
Hey check out that girl over there, I'd pihb her so hard!
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So what i can take from this is you want to pee in Skelington's butt? :/