Acronym for "in your pants"
Riley: You should stop flirting with him! You're totally leading him on.
Tess: I am not! He doesn't even like me!
Riley: You have to be kidding. He obviously wants IYP.
Tess: I am not! He doesn't even like me!
Riley: You have to be kidding. He obviously wants IYP.
by LadderOfHisFall May 2, 2010
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