Grandmaphilia 

The sexual attraction to elderly women with wrinkled skin and grey pubic hair. Wanting to have sexual acts with an old grandma.

I want to fuck that 90 year old bitch, therefore I have grandmaphilia.

Grandmaphilia by Urban Dictionary January 9, 2010

Grandmama 

The overlord of all grandmas. She is more powerful than all the grandmas combined and controls them as her slaves. Her purpose in life is to make children under 10 years old happy with their life until they realize that grandma will die one day.

Edna (Grandma): Wow Janice, I saw your Facebook feed. Your grandchildren are getting quite plump. Did grandmama ask you to make all those cookies?

Janice (Also grandma): That's right! If you look at the walls, you can see all the scarves I've been asked to knit together for them.

Grandmama by TimTheTurtle May 31, 2018

GrandMAAAAH 

Something to moan when either:
1. Your having sex with a G.I.L.F.
2. You are climaxing when your grandmother walks in

We call Grandma Betty GrandMAAAAH ever since she walked in us.

When fucking a G.I.L.F. instead of moaning her name, replace it with GrandMAAAAH.

GrandMAAAAH by aquapinch7 September 7, 2009

grandmawhore 

An aesthetic consisting of the grandmacore aesthetic whilst simultaneously being slutty.

That girl’s aesthetic is so swag. truely the ultimate personification of grandmawhore.

grandmawhore by bigdickgrandmaenegry June 25, 2021

grandmachete 

A name for a chair that has a 11.6 inch needle in the middle or a name for a flamethrower that shoots penguins.

Oh no! I sat down on a grandmachete!

grandmachete by Good morning U.S.A! May 21, 2023

Grandmama 

Grandmama is used for people who are wayyyy to posh

Friend: my grandmama is coming over for tea tonight

You: damn man your so posh

Grandmama by Urmummm123 December 30, 2021

Grandmama 

The Grandmother to the Mother of an individual.

My Grandmama was the Mona Lisa.

Grandmama by CrabbyChicken April 20, 2022