incesstakle 

The grotesque appearence of your testicles if your parents were related, (incest).

" fuck man, that is one FUCKED UP incesstakle"

incesstakle by Cakyfuzz March 20, 2010

Incestable 

A blood relative with enough beauty to warrant serious contemplation of sexual relations.

I haven't seen my cousin Jessica since we were kids...fuck me running - she's incestable!

Incestable by Alison Chaynes May 22, 2009

Incestable 

A child of incest especially with obvious mental depletions

James is a product of incest with obvious retardation so he’s an incestable

Incestable by Dick Cheeze Demario March 19, 2021