Top definition
When a group of friends has all hooked up with the people within that group of friends.
Lacey: "Well, I hooked up with John last weekend and Chad the weekend before that."
Dana: "Oh John is a great kisser, I hooked up with him all last summer. But I think I like Chad better in bed."
Lacey: "Hm. Maybe I should ditch them and give Blake a try."
Dana: "Oh he's good too!"
Lacey: "Wow, this is total frincest."
by abuttsy November 20, 2009
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2
Frincest is when one is " Fraped " by a family member.
Naomi - fraped by my own mum.. just why? :')
Ashley - Frincest?
Daniel - Lmao, yeah.
by Prof. AJF October 10, 2010
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3
A word used to describe the various hook-ups and interchanging relationships that happen within a friendship group.
fred: didnt george just kiss mary yesterday?

chris: yup. And she broke up with dean last week.
Fred: but dean was with harriet?
chris: nah they broke up months ago. Jack is with harriet now.
Fred: yeah. I guess with all our friends hooking up you could call us frincestuous.
by vintagelovers July 13, 2011
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