Originated from a shortening of "Piece of Shit", meaning something/and/or someone that is really shit.
oi that Natasha girl is a POS
by Helzdawg October 7, 2010
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dude did you see that nice POS waiting in line?
yeah man id love to give her a ride around the block
by stopstrokin,startcummin May 11, 2009
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Acronym; Packet Over Sonet.

Method of transporting packet based services over SONET transport.
The OC-48 is a POS interface.
by HempZi11a April 12, 2004
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Anyone muscular whose afraid of doing something
"Your a POS, why are you afraid of roller coasters"
by Slurpeeshots June 25, 2015
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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!!!
by lil' slutty cheerleader April 13, 2009
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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
by Shai-Tan July 5, 2003
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Pockets of Stupidity. Like minds that tend to cluster together, all equally stupid. An organizational work unit that is oblivious to their surroundings, be they cultural, technological, political or social. The usual suspects that regularly use the excuse phrase "well, no one told me".
For the most part everyone understood the presentation, but there will always be a POS.
by High Tech Mutant March 18, 2010
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