Incest Betty 

A mother who’s obsessed with her son’s appearance.

Dude His Mom Said He Was So Much More Handsome When He Was Clean Shaven She’s Definitely An Incest Betty

Incest Betty by LouisianaOutlaw March 25, 2023

Incest baby 

An npc or person's character in a game that is very overpowered and popular amongst other overpowered characters. Practically spoiled in every way possible.

This term is inspired by game of thrones.

Person 1 - hey, did you see that guy, jerry on the game?
Person 2 - yeah he was such an incest baby.

Incest baby by FancyNarwhals August 6, 2014

Incest Angle

a father licking his own daughter's vagina in the public for others to enjoy

I gave my daughter an incest angle when she was misbehaving.

Incest Angle by RandomGuy690641 August 11, 2016

Incest Rule 

The Incest Rule, also known as Rule 999, requires you to have sex with your close relatives at any time possible.

"My cousin is coming over tomorrow."
"The Incest Rule?"
"You're dead to me."

Incest Rule by AnonLollipop August 17, 2016

Incest Cousin 

A cousin that one has sexual intercourse with.

"I heard you've been seeing your cousin."
"Yeah, we're incest cousins."

Incest Cousin by westvirginia December 22, 2016

incest vibes 

the feeling you get when two of your friends suddenly get close and act like a couple when they insist they’re just good friends. Instead of being cute, though, it just makes everyone feel creeped out. It’s like watching a brother and sister flirt....

“Have you seen the way Rachel and Nick have been acting lately?”
“Yeah man, it’s giving me incest vibes”

incest vibes by Sheeepherder December 19, 2017

Incest Evan 

A person named Evan who dated his cousin and kissed that bitch like bro thats kinda weird.

Hey, that dude fucked his sister, we should call him incest evan

Incest Evan by Lil Carrotcake November 6, 2018