Acronym for several phrases:
1) Piece Of Shit - A worthless person. Someone who doesn't even deserve the title of "asshole".
2) Parent Over Shoulder - Used to let another person know not to say anything incriminating because a parent is watching/listening to the conversation.
3) Point Of Sale - Term used to describe a cash-register or other equipment designed for retail store checkout.

1) The mother that got caught giving her teenage daughter heroin is a POS.
2) I can't wait to.... (parent enters room) POS

(parent leaves) .... fuck the shit outta you tonight.
3) Use the POS terminal to complete the transaction so the sale will be reflected in our inventory.

pos by someonestolemyavatar November 22, 2015

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POS

Means, Parents on shoulder. It is used to tell the person you are talking to that your mom or dad is around and/or looking, so they don't type anything that your parents wouldn't want to see.

iSaBeLla<3: OMG i gave cody a bj last nite!!!
S.A.R.A.H: pos
iSaBeLla<3: wad was the answer to question 4 in the textbook for science?
S.A.R.A.H: ok my mom is gone
S.A.R.A.H: OMG realli how was it?!?!, was his dick big?
iSaBeLla<3: it was fucking awesome! it was the biggest dick i ever seen!!!

POS by lil' slutty cheerleader April 13, 2009

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pos

pussy of steel. A chick who's pants just won't come off..even after alcohol.

joe: hey frank, you bang hillary yet?
frank: nah man, she's a pos.

pos by patrickbatemanjr January 16, 2011

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POS

Random abuse of power by irc channel operators. POS is unique as it encompassess Psycho Op Saturday and Psycho Op Sunday.
See also POM POT POW POTh POF

/kick <luser> POS

POS by Shai-Tan July 4, 2003

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