Friendship Incest Syndrome is an occurrence where you have a group of friends who have all dated and broken up with the same people, then you are eventually forced to be friends with an ex because they're still in your circle of friends - in fact they're probably dating one of your friends by now. It effects a small # of people, likely living in Southern California. It extends to Frenemies who have removed themselves from the circle whom you can never fully get away from.
I'm going to a concert tonight, oh jeez, Robin & Joe are going to be there...Friendship Incest Syndrome (FIS).
by Ms. Woods July 7, 2010
Get the Friendship Incest Syndrome (FIS)mug. 
Get the incest is the best put your sister to the testmug. Brent Austin Miller (terrorist) from Lytton, Iowa fucked tiffany johnson also from Lytton Iowa when she was 13 and he was 18 and then again when he was 19 and then he took his sister to her senior prom and tried to get laid........he succeeded he also has a gay ass jewfro and a small dick that didnt please tiffany or his sister.
by chandlerjepsen11 September 30, 2012
Get the brent is a pedophile and incest loving jewish bitchmug. by annexoxosmith February 19, 2024
Get the Incestmug. by Senor Yeet September 27, 2019
Get the Incestmug. 
Incest means having sex with someone from your family. This was a common thing back in the days but is not considered normal any longer unless you live in Alabama where it's still considered perfectly normal to fuck and marry your cousin.
Alabama person: so this is my wife Karen
Normal person: Ohh I thought Karen was your sister
Alabama person: Yeah she is my sister, but she is also my wife
Normal person: But that's incest
Alabama person: I really don't see the problem
Normal person: Ohh I thought Karen was your sister
Alabama person: Yeah she is my sister, but she is also my wife
Normal person: But that's incest
Alabama person: I really don't see the problem
by Cute lil bitch March 18, 2019
Get the Incestmug.