POS
POS stands for piece of shit and is helpful in calling your friends a piece of shit because you can just say POS prounced PAWZ
Ed, Mike, Tom, David, Allen, and Erick are all POS's (plural form)
by Erick Liang October 13, 2006

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Pos
Although standing for 'Peice Of Shit', pos is an offshoot for a universal adjective to describe someone in a negative way or it can also just be used as a noun that is the equivalent to calling someone a negative name.
Adj. Look at that Pos Nub camping...im bout to pwn him.

Noun. He was supposed to pick me up but he never did. What a pos.
by Dustin Weber May 20, 2003

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pos
Yes it IS an abbreviation, but it means Piece of Shit.

Tis Quite simple to understand.
"This film is a POS"

"You are an idiotic POS"
by Aaron July 11, 2005

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POS
Parent Over Shoulder while typing in a chat room.
Tammy is typing to Dohn and her mom walks in and Tammy types POS in the chat room window.
by Dave Herberger March 20, 2006

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pos
1) Piece of Shit
2) Position
A) My DVD Lens Cleaner is a POS! It doesn't even work!

B) His position in the game was (24,13).
by Xiile June 28, 2004

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POS
Point of Sale
A POS system is used as a computer management system for a resataurant or retail shop.
by POS GUY February 05, 2017

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POS
Abbreviation for "Parent Over Shoulder."

Most commonly found in chat rooms filled with young children whose parents know that Chris Hansen won't be there to save them when an older gentleman arrives at their home with a to-go bag from Wendy's.
xxTypicalEmoScreenNamexx:
So, want to masturbate via webcam like we did yesterday? We can discuss those late night fantasies about John Stamos you've been having.

Assassin-TheUnoriginalScreenName-Ninja:
Dude!! POS!!!
by The carnivorous vegetarian September 20, 2010

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