A "friend" who uses, then betrays you. Backstabbers are also considered, full of them selves, bossy, annoying, and extremely bitchy.
Well, the other day a girl at my school was being such a know-it-all at our chemistry class. She kept on saying that she was smarter than everyone else, and she was bossy. Most of the answers she gave us were wrong. I talked to my other "friend" (Backstabber) and she told me to tell Know-It-All to fuck off, but I, being the nice person I am, didn't want to be mean so I didn't. Later that day Backstabber told Know-It-All what I said, and Other Loyal Good Friend whispered to me that Backstabber and Know-It-All were spreading rumors and telling lies about me. Backstabber deserves to be stabbed. Know-It-All needs to receive a nice, long email containing all of the insults, truths, and comments everyone wants to scream at her.

I am very sorry this example was so long.

I hope it was entertaining.
by ES Revenge101 October 26, 2011

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a person who does somthing naughty with another person then turns aroud and tells people and never calls that person or comes to see that person!!
he made-out with her and never called her when sh really liked him!!
by shaina September 23, 2003

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Gay person or one who gives anal sex. Also a person who surprises you from behind with thier penis.
"Get away from me you god damn gay back stabber"
by Cookie March 09, 2005

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