Incesterbation

The act of having sex with your clone; a mix of masturbation and incest.

Spotti cloned herself and I caught her incesterbating, and it was awesome. It was some pretty hot incesterbation.

by Taliaa July 16, 2007

incestating

The act of dating your sibling.

Mom: Where are you and your brother going?
Mary Sue: Billy Bob and I are going incestating!
Billy Bob: I'm gonna' get me some of that good sister lovin'.
Dad: Billy Bob, you know I shoot at anyone who tries to date yur sister, but since you are my boy I guess I'll let it slide tonight.
Mom: Have a good time and practice safe sex you silly kids.
Dad (to Mom): Come on and watch TV with me, it's our favorite show, "All in the Family".

by The Evil Minister July 16, 2008

Incest

When two family members of the opposite gender have sex, resulting in the creation of a tyrant.

When you do it with your sibling of the opposite gender, your child will most certainly become a tyrant or live a life of suffering. Adolf Hitler was inbred, his dad fucked his niece, resulting in an incarnation of evil. Caillou is also inbred, he screams constantly at the littlest things and is just a general bitch, I mean why the fuck else would his parents names rhyme? If you do it with your cousin, there`s only a 50% chance it will be a piece of shit. Porn always features incest, somehow people find it hot, therefore, it is the fault of the porn industry that incest has become ever more prevalent! Even the bible (the biggest piece of horse shit in the galaxy) is against inbreeding!

Kevin: Oh god! What are Jack and Ellen doing in there? They`re siblings!
*Kevin bursts the door open*
Jack: Kevin, what the fuck? We were having sex!!
Kevin: I`ll tell you what the fuck, you guys are doing incest!
Ellen: So?
Jack: Yeah, people do it in porn, so it`s perfectly fine!
Kevin: You trust that shit?
Jack: Yes, of course I do!
*Jack and Ellen keep fucking each other*
Jack: I`m cumming! Uuuuuuuuuuuuunnhhhh!!!
*9 months later*
Ellen: Let`s name him..... Caillou...

*Disclaimer: I do not condone incest or inbreeding, inbreeding can be very dangerous for you and the child, you don`t want your child to become like Hitler or Caillou after all.

by JustAnotherSickFuckOnUrbanDic January 17, 2021

Woody Allen Incest

The creepy act of getting into a relationship with a "step" or distant member of your family, such as a stepchild, second cousin, or "stepcousin". This type of behavior is not illegal, but definitely creepy. Named after Woody Allen, who married his ex girlfriend's adopted child. (Arguably if not definitely his stepchild.)

Mark: Hey I wanna hook up with Sarah, she's my uncle's stepchild, but that doesn't make us biologically family!
Joe: That's Woody Allen Incest! And fucking disgusting. Even though I'd plow her hard.

by NemoHavok June 18, 2009

Incest

(V.) To have sex with your blood relatives.
Also, apparently a pastime for Rednecks.

Billy-Bob loves to practice incest, especially with his sister.

by Glittery Goddess July 25, 2004

step-incestuous

Being in a state of sexual attraction or taking fancy in a step sibling.

Justin is scared that him having sex with his soon to be step sister would be consider step-incestuous.

by SlaveMatthews September 24, 2014

Ur Ancestors Incestors

The most godly term only used by intellectual beings to signify domination any person who uses this is known as the king of abomination

Bill:ur mom gay
Jeff:ur family tree lgbt
Bill:ur ancestors incestors
Jeff:*disinegrates from the inside out and is automatically sent to the depths of hell for enternal suffering and pain*

by JONBIGNXGGA April 13, 2018