PoS 

Piece of shit.

"His new car is such a pos"

PoS by Matthew Savva March 20, 2003

pos 

It means piece of shit, and you use it towards anything that is worthless.

Aol is a prime example

pos by lunar shadows December 29, 2004

pos 

Another gay instant messenger abbreviation created by losers with no life. Means "parent over shoulder." Used to tell the other person that your mom/dad is looking so don't type anything you wouldn't want them to see.

ChEeRcHiCk289: omg lyk u no who is lyk so hott?
SeXiPriNcEsS542: pos
ChEeRcHiCk289: um....what is our math homework
SeXiPriNcEsS: ok he left
ChEeRcHiCk289: oMg! josh is soOo hott and i gave him head yesterday because im a slutty little cheerleader!

pos by Asshole November 8, 2003

pos 

An abbreviation of Position used by programmers

pos = pos + deltaV;

pos by thatguyguyguy August 23, 2021

POS 

Point of Sale.
Used at Stores to refer to something that happens at the cash register.

Please offer the Customer Something at POS

POS by ERik February 20, 2005

pos 

Despite popular belief, it does NOT mean parent over shoulder (anyone who thought that obviously hasn't found the minimize button; you know, the button that hides shit). It does however, mean Piece of Shit.

My car is such a PoS

pos by qblastphemy August 2, 2009

POS 

A 'pos' is a Piece of Shit.

Megii : You're really pretty, Alice!
Alice : No I'm not, pos.

POS by Khaytiie March 8, 2008