insestual 

insestual insest

to be sexually active with a family member e.g mother, farther or sibling.

martin is insestual as he has married his mum and makes love to her frequently the sick twisted man.

insestual by brucemeister October 25, 2011

incestalicious 

adj- the quality of being so absurdly attractive as to legitimately incite a desire to commit an incestuous act.

"Dude, you should really think about f'in your sister cause she is incestalicious!"
"Who could blame Jon Voight for thinking his daughter is incestalicious?"
"Oedipus was a sick bastard because no one thought Jocasta was incestalicious and he still f'ed her."

incestalicious by artvandelet September 12, 2005

materno-incestuant 

Also non-hyphenated, maternoincestuant.

A person who engages in incestuous relations with his own mother. Sometimes referred to as a motherfucker.

The term may have use as in insult.

Tom's not very smart. If we call him a materno-incestuant, he probably wouldn't know what it means.

materno-incestuant by dword October 1, 2008

incestual orgy 

Like family game night but...
Those aren't dice in gramma's hands...
That's not a spinner in mom's hand...
and that's DEFENITELY not a penis you're inserting into your sisiter's vagina. Oh wait... yes it is.
Usually includes statutory rape and pedophillia.

"Can me and sis sleep over at the couisns, their mom said we're gonna have a ALOT of fun.

incestual orgy by Niloc February 22, 2005

Incestualpedobeasteonecrophiliac 

Incestual(Related to)pedo(under aged)beasteo(animals)necro(dead)philiac(attraction too)

“Ohh you like him, I think he is a Incestualpedobeasteonecrophiliac"

Incestualpedobeasteonecrophiliac by BillyPRB March 31, 2019

Homo-incestual-pyro-negro philiac 

You mean "necro", not "negro", you ignorant jerk. A Homo-incestual-pyro-negro philiac is one who likes to have sex with burning BLACK relatives of the same sex. Not dead relatives. Although, they'll be dead soon enough if they are burning, I guess.

I once met a homo-incestual-pyro-negro philiac who never completely fulfilled his desires because although he could set his relatives on fire and have sex with them, none of his relatives were black.

Homo-incestual-pyro-negro philiac by sseni April 10, 2008

Incestial Beings 

A mutation human species from massive incest.

Alabama the homeland of incestial beings.

Incestial Beings by DailyMusic June 5, 2011