a person who for some unknown reason pretends to be your friend then harrasses you for no reason then denys it all then admits it then denys it again then tries to get you to feel bad for alerting an adult of the situation
Christina is a backstabbing liar all of the time and cant be trusted.
by monkey monkey monkey April 15, 2009
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To betray a friend by doing something "behind their back" that would harm them in any way.
Joe backstabed me when he told Tori about our secret last weekend.
by Salchite March 6, 2005
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betray someone or otherwise harm them in a treacherous way
He is the only shit head with enough nerve to backstab my mom.
by The Return of Light Joker July 31, 2008
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So called "friends" will act like they really like you, be friendly with you. And then goes out and make up lies to your girlfriend that you're seeing someone else and that he has been covering for you for the whole time. This makes your girlfriend seem confused and think you do not take your relationship seriously.
When we found out what that backstabbing prick did, we encircled him and beat the living sense out of him. Now he cannot talk and cause any harm to anyone.
by Straight G Muthafuker July 10, 2006
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Pretending to stick up for you at work and later you find out they've been talking trash about you. (In fact, saying the exact opposite). Striking you down from behind.
Jon told me that he stuck up for me. But he actually voted to get me fired and he knew in advance it was going to happen. He backstabs.
by Livingwell March 7, 2007
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Someone who can't handle their own immaturity so they make lies about their friends and then deny that they ever did anything to hurt them.
Person 1: Let's be friends
Person 2: Okay!

Person 1: I'm going to tell you my feelings okay?
Person 2: Okay!

(After a while)
Person 2: what a drama queen! (Said to others) (As they read the persons messages)

Person 1 to different person: They totally backstabbed me! I sent those messages in confidence!
by jldd June 27, 2014
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When you are talking to a girl for years, and your country calls for you to go to Iraq, so right before everything breaks out and the you find out the girl you have loved since 7th grade feels the same way. And everything goes well when you are deployed so you think, but you get back on mid-tour leave and you find out she is back with her ex, and fucking another guy on the side while saying she loves you and she ment to tell you.
Guy one: Hey man, did you talk to the girl you've been talking to for months while you were back in the states?
Guy two: No, that whore backstabed me.
Guy one: Harsh man, want some peanut butter?
by Zamzamlaru March 26, 2009
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