Cousin Zone 

Status attained when a girl will not respond to your sexual advances because she is your cousin.

I met this pretty girl at the family reunion, but I messed around and ended up in the cousin zone.

Cousin Zone by cap'n morgan 518 November 26, 2011

Cousin zone 

Similar to friend zone, one may find themselves in this dire predicament when a flirtatious attempt with another is ended abruptly due to them exclaiming something along the lines of 'but we're cousins!' or 'you're my cousin!'.

(After yearly family gathering)
Cletus: Goddam it Travis, it was going real gooood
Travis: Why, she didn't cousin zone you did she?
Cletus: You're darn right she did

Cousin zone by swaggy_mcdabbins April 9, 2019

Cousinzoned 

When you host a cookout or family reunion at your household, and your younger cousins want to play with your electronics but you don't want them too, but they do anyway since either your dad or their dad don't care since it's either "ThEiR mY NEpHeWS" or "ThEiR mY KiDS".

"Hey, Did you get cousinzoned last week at the cookout?" - "Yup, unfortunately"

Cousinzoned by sclimmim December 16, 2020