Grandcubs 

Grandcubs are grandchildren to a grandmother, grandma, meemaw, etc.

The grandmother took her grandcubs to the movies to see the new animated film.

Grandcubs by Sterling Archer January 3, 2017

grandcousin 

the grandchild of a first cousin (cousin-german)

I don't have any grandkids yet, but I have three grandcousins.

grandcousin by mérovée December 26, 2011

GrandCunt 

a name/label used in reference to someone you should have been allowed to call grandmother, BUT because your parent is an AB/DL you are forced to refer to her as a MommyAnn; emphasis on the word mommy. In doing so against your will animosity, hostility, and ill will develop leading to the creation of your term of endearment, GrandCunt.

(1).Some people have a grandmother, others have a grandma, I was forced into having a MommyAnn until the day I revolted, now I have a GrandCunt.
(2).Bootz, "Shoo Fresh you know you rich grandma buy you those dank kicks you need fo school..."
Fresh, "Jigga please! you know I aint got no grandma, I got stuck with a GrandCunt.

GrandCunt by noLIMITsouljagirlz May 14, 2010

step grandcousin

your first cousin's stepcousin

My uncle put the whip on my former step grandcousin

step grandcousin by JustC45 August 13, 2022

grandmussy 

Grandma Pussy

"ZAMN! That Grandmussy be fire my guy!"

grandmussy by Timothy, Nut-Lord December 28, 2021

Grandcats

Grandcats: The cats that will inherit all of your worldly possessions after you die old and alone.

I bequeath to my Grandcats, Mr. Higgins and Smooshy, my rare and valuable record collection.

Grandcats by jenwongtattoos September 22, 2016

Grandquist 

Fucking fat ass, plays Elden ring and destiny 2 all day and won’t shut up about it.

“Man bro you’re such a Grandquist, lose weight nerd”

Grandquist by Grandquist April 14, 2022