Definitions by Alphie82

P.I. 

Abbreviation of:

Prison Issue

Used to describe someone who looks like they are straight outta the slamma

Or perhaps a weapon can be P.I. like a handcrafted knife would be P.I. shit

Lets say your at a Denny's Restaurant and your waitress has more tattoos than a Miami Inc. Banner than she would be considered P.I.

Everyone would refer to her as P.I.

P.I. by Alphie82 June 12, 2009