sisconism 

Sisconism, dervied from siscon with the suffix -ism, means you have a consanguinamorous attraction towards your sister.

the way he stares at his sister makes me suspect he's oriented towards sisconism

sisconism by Bobbystrurrew June 13, 2023

anti-siphonism

The belief that the world will be much better without the individual Maksim Roskov, otherwise known as Siphon.

Dude life just got much better with anti-siphonism. We don't have to worry about cringe or desperation anymore!

anti-siphonism by shahrom October 30, 2022

simonism 

To trip someone out (preferably a stranger) by pulling a fucked up face, or chattin random shit!

Its amazing what some class A's will do to the brain to trigger a 'SIMONISM'. Time to get GRIMY!

simonism by baseheads July 10, 2006

Simonism 

Being a pedophile

Oh Jerry did you hear Micheal has simonism?
Oh so he is a pedophile

Simonism by Simon Delaney August 17, 2022

sibconist 

A sibconist is an enthusiast of movies / series featuring consang, i.e. consanguinamorous relationships; which in fandom is described as sibcon, a combination of siscon (Sister complex) & brocon (Brother complex) or in more erotic imagery as fauxcest.

she's certainly a sibconist if she can't get enough of Game of Thrones

sibconist by Bobbystrurrew July 11, 2023