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3.
a pile of shit, otherwise known as POS, can be used to describe a person, or pile of shit, that seems nice and smells nice, but in reality, you realize that they're just a big pile of shit, and only pretended to like you so they didn't have to go to the prom alone. Fucking POS.
a pile of shit, a big bitch, someone who will use you and then shit can you. her friends suck balls.
by Huge E. Rection June 10, 2008
 
1.
See AOL.
This pile of shit takes up 7 gig and makes me freeze up when I right click.
by Gikata March 10, 2004
 
2.
1.a carefully placed pile of poo that is made with a shovel.

2.also can be somthing that is broken/wrecked/ destroyed or just somthing that is bad.
1.Holy fuck i have never seen such a neat & carefully placed pile of shit

2. im glad i got a new car that old one was a pile of shit
by Talon May 31, 2004
 
4.
1. A mound of fecal matter with emits an odor that is not pleasent.

2. A slang reference to an item or person which refers to the subject being unusable, of shoddy construction, unwanted, unreliable, or unacceptable in some fashion.
1. I just stepped in a huge pile of shit left by the mule.

2. Windows ME was a huge POS.
by k_semler August 10, 2008