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1.
pir
Parents In Room
Used while kids are in online chat
rooms/IM services and parents is in the room.

<TastyBuddy>: 'sup LilBitch? like that shit last night?
<LilAngle>: Why kind sir, do I know you? PIR
by jeff June 19, 2003
 
2.
PIR
Prom Inflated Relationship
When a relationship that should end goes on because both sides are committed to prom and cannot break up until about 2 weeks after prom.
Mike: Dan and Julia finally broke up. They should have ended it before he asked her to prom. Bob: Yeah, it was a PIR.
by Megapattar June 01, 2011
 
3.
Pir
A noble,chaste and a respected male.
He is Pir just because he is on the path of righteousness and piousness.
by Pir Rashdi December 16, 2008
 
4.
PIR
Short for the show the "Price is Right". Coined by comedian Dane Cook.
I felt sick today, so I stayed at home watching PIR.

GOD DAMN YOU PIR!!!!
by lethal_hands November 25, 2006