Situation: This happens when you introduce two of your friends that didn't know each other before and then suddenly they become best of friends and start doing things together without including you when you were the one that introduced them.
Mandy: "Why don't you and Terry hang out anymore?"

Kathy: "She is friend cheating on me with Lesile"
by PinupGal September 15, 2010
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friend cheating is when your friend cheats on you with another person, like how a bf cheats on a gf w other girls and vice versa
Me- "Oh my god p are you friend cheating on me?

P- what ??
by yeeeewwee June 15, 2016
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