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Acronym for: Intensive Out Patient. Relating to rehab.
Dumb ass: Hey I just failed my piss test at IOP today!
Me: Wow you think your cool now?
by DGAF $$ KWEEN September 25, 2008
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Intent on pounding: When one is planning to have intercourse in the near future
β€˜Are you IOP tonight, Paul?’
Paul: β€˜No, I have ridiculous chlamydia. Maybe another time’
by Former child November 24, 2017
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This is usually found on post op trans-sexuals that used to be men and are now women,and is an acronym for Insisde Out Penis
Look at that manly looking chick over there at the bar, do u think she has an IOP?
by dallas p sizzle February 08, 2009
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