Permanently Pissed Off. This is a person who's normal look is pissed off. Someone who never smiles or rarely. Someone who is never happy or very rarely 1% of the time.

People seem to tow the line with such a person, or try to guess why they are pissed off or try to do stuff to make them happy and smile. Which they do smile for a few seconds and then go back to being pissed off
omg that John is such a PPO, he's never happy , I've never seen him smile
by Frank467 May 6, 2017
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Short for people. A relaxed version of ppl.
by yes juanito yes March 14, 2015
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"Trevors car is a ppos"
"Dude that care is i purple piece of shit" "must be trevor"
by kquick November 28, 2007
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PPO or Partying Purposes Only - is a phrase or acronym used when you do something in order to throw the most badass party or keeping the party flowing.
ex:
Person 1: Hey man, I just downloaded the best 100 rap songs ever.

Person 2: You Would.

Person 1: I like to have the best music for PPO(Partying Purposes Only).
by Colt Mccoy's Roommate April 6, 2010
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Noun, Adverb.
Acronym of "Pussy-slap peace out". The act of slapping a pussy, then "peacing out" or as an conversation stopper, often used with girlfriends.
-"Yo I PPO'ed your mom last night! "
-"Damn, you need to respect your lovers..."

-"We need to talk, it's not you. It's.."
-"PPO"
by StimulatingPants October 20, 2020
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its a cereal that is not legal in some places
by DLaudfacts February 16, 2022
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