by the egg plant person August 7, 2017

PIS is an acronym for "pretty interesting shit". Please note this is an acronym because you actually pronounce it as "piss".
Marley:Hey, check out this Stephen Hawkings lecture! It's PIS!
Bob: Wow, I'm so glad I learned about wormholes! That was PIS!
Bob: Wow, I'm so glad I learned about wormholes! That was PIS!
by Spozzy January 7, 2011

by Euclid's Elements November 7, 2006

PIS (Noun) is an acronym for Personal Individual Style. It can be used to describe or categorize all style which is both Personal and Individual. The term can also be interpreted more broadly to refer not only to manner of dress.
"I really like your PIS today."
"She's got some mad-hot PIS."
"Her PIS is piping hot--I mean FRESH out of the urethra!"
"You call that PIS?"
"She's got some mad-hot PIS."
"Her PIS is piping hot--I mean FRESH out of the urethra!"
"You call that PIS?"
by DRSTP July 3, 2007

A trend that started at a local university, where a roomate and a gay friend, violate and anally rape a second roomate, while the third roomate is not in town.
by T-More December 20, 2007

I'm pied me, gonna call it a night
by PiedFranny January 26, 2015
