Granddult 

When a grandchild turns the age of 18 they become a granddult

I miss my grandkids and granddults

Granddult by Kylie Cotsford December 28, 2021

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

Grandmule 

The act of using your grandmother to gain addition allotment of anything that is limited to per customer.

Mule + Grandmother = Grandmule

i scored 4 extra bottles of Jester king with my Grandmule

Grandmule by vdux1 April 11, 2016

Grandulous 

When you are feeling amazing. Life is pretty good. Must be eating corn on a cob or killing a puzzle. When great isn't quite enough to describe how happy you are you bust out this word.

Only the coolest people on earth use this word. Same thing with beautiful people. When you're blue eyes stop people in the their tracks your that beautiful, your life is grandulous

Mister Cheddah- "Hey beautiful how are you today?"

Ta Ta Rosa- "I am grandulous! Just got 10 pieces in a roll. I am jacked!"

Grandulous by BigC-RR July 4, 2011

4X-grandaunt 

Great-great-great-grandaunt.

My 4X-grandaunt is a good person.

4X-grandaunt by KL198 June 25, 2021

GrandAutismo 

The autistic kids that race through the halls making race car noises that you usually take knee caps from so they crawl around on stubs and now they are just snails

Look it’s a GrandAutismo! LETS TAKE HIS DAMN KNEE CAPS!

GrandAutismo by EMSP420 March 28, 2019

Grandmuthah 

1. A grandma who does not act like the stereotypical grandma
2. A really cool grandma

Nugget: My grandmuthah bought her a book by some guy named Timothy Freake...
CoNAWR: Wow, you have a really cool grandmuthah.

Grandmuthah by Elizabeth Tudor May 31, 2006