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.

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*

Ur Ancestors Incestors by JONBIGNXGGA April 13, 2018

Incesturbation 

When you clone yourself and then have sex with the clone.

The University loaned me their cloning device; I've always wanted to try incesturbation.

Incesturbation by lclaymaz May 15, 2015

incestuous 

The act of having too much or to many interrelationships with a group, such as a company, church or family.

" I feel sure they will fill the empty Director's Position with someone from within as this ______( company, city or organization) is so incestuous when it comes to hiring."

incestuous by Billydeal June 19, 2018

Inceptuous 

Something that is so amazing it can't be true or it must be a dream

Today was the best day ever! It was just... just... inceptuous!

Inceptuous by nitenel February 28, 2011

your ancestors were incestors 

The absolute worst, extremely cursed saying, nothing can save you now. You may only use 7 times a day, or the sun will go black and all life be be voided.

Tyler: You’re family tree LGBT.
Matt: Your ancestors were incestors .
Tyler spontaneously combusts, his soul projects directly to the seventh ring of hell.

your ancestors were incestors by Tylerbiggay March 28, 2018

ur ancestors incestors 

A more advance insult used by only the highest of intellectuals, drives from others such as ur mom gay, ur dad lesbian, your granny tranny, your grandpap, your grandmam a trans am and your Ur family tree lgbt

Billy: hey simon ur family lgbt
Simon: fuck u Billy ur ancestors incestors
*Billy becomes the goop that was used in the fake krabby parties and is crapped out by Sadam Hussein*

ur ancestors incestors by Dat Nibba April 10, 2018