A POS refers to "a piece of shit" usually used to describe something as worthless or not good enough to be compared to the norms set by society.
"Kelly got a new $40K sports car!"
"Aw man.. I've still gotta drive this POS car around for another 5 years before I can afford something that expensive.."
Olivia : omg that employee was acting like a pos!
John : I wonder why.
Piss poor excuse of a man, mommy does everything but breath and wipe his ass for him. Spends his check on weed and alcohol but can afford fine dining. Makes himself feel better by talking to multiple women at a time because he is an insecure child.
David- "thinking bout coping a bottle of duesse for the weekend"
Saturday- tells his girl he is staying in but is drinking that bottle with a female who is "just a friend"
* Thursday after stays in the house because he can't afford even a 4 for 4 at Wendy's
Wow that guy David is such a POS
pronounced poss. an acronym for Piece Of Shit.
"he is such a POS"