Top Definition
Like incestuous, but with your friends. A group of friends that's oddly, freakishly close with each other. Hold hands, occasionally kiss, share toothbrushes. Sometimes significant others of the friends get jealous of how touchy feely they are.
Those girls over there are so friendcestuous. It's kinda hot, actually. They keep cuddling and licking each other.
by therainsmelody May 09, 2010
2 more definitions
The act of dating the ex of a close friend or family member.
You're dating your brother's ex? That's so friend-cestuous.
by The Wicked Chica October 20, 2010
A word to describe a person or people who sleeps with and/or dates several different friends within the same social circle.
She is so friendcestuous, she has slept with every single one of her single guy friends, and they are all friends with each other.
by JENACIDE December 12, 2013

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