academic incest

When a college or university hires its own graduates back as professors, especially when they have little to no professional experience in their field.

The academic incest in RISD’s architecture department has led to a decay in faculty quality.

by Goblinoid February 20, 2020

roommate incest

engaging in "bedroom" activities with ones room/housemates.

my roommate invited me to hook up with her and her fuck-buddy! like a threesome!... i do NOT participate in roommate incest thankyouverymuch!!

by veronica corningstone April 14, 2006

Southern Incest

The act of having sweet southern sex with a closely blood related family member. Usually done in the south states of America.

My friend Billy Ray from Alabama is always talking about his southern incest with his cousin..Not sure what that means?

by Southern Christian User/Abuser June 22, 2018

name incest

When a person dates someone that has the same name of one of there immediate family members.

Do not confuse with name masturbation.

Person H: So what was the name of your girlfriend? Rebeca? The same name of your sister?

Person T: Yea... Still getting use to the name incest...

Person H: Name incest, awkward as fuck.

by For The LuLzz February 22, 2011

passive incest

Passive incest is when boyfriend's and girlfriend's have sex with each others family members..

Dateing a person and haveing sexual contact with someone in their family....passive incest

by regardless devon victory January 23, 2010

Incest-in-law

To fuck one's brother-in law or sister-in-law.

Ed: "Wait, Jack fucked his wife Jill's sister?"
Eddie: "Yeah he just committed incest-in-law."

by The Elias June 2, 2016

Incest Evan

A person named Evan who dated his cousin and kissed that bitch like bro thats kinda weird.

Hey, that dude fucked his sister, we should call him incest evan

by Lil Carrotcake November 6, 2018