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1 definition by Mr. Right!

An IMP is what a brother of Phi Eta Psi Fratenity, inc. is recognized as. Often the brothers of Phi Eta Psi Fraternity are also recognized as the IMPerial men of Finesse, or the Iota Mu Pi's of Phi Eta Psi fraternity.
I would like to pledge Phi Eta Psi Fraternity, but I'm scared, because the IMPs pledge to hard!

Do you see that hard-lookin' guy over there, he's an IMP from Phi Eta Psi Fraternity.

The IMPs and the Emeralds of Phi Eta Psi Fraternity call themselves "The Family."
by Mr. Right! November 07, 2009
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