Grimmature

When someone is acting grim and immature.

Cindy is a grimmature cunt.

Grimmature by Bon Hommley September 6, 2014

gramature night 

when an older woman is hot enough to be a stripper, yet old enough to be someones grandmother

check out that milf, she is hot! i bet she could win the prize money on "gramature night" down at the strip club.

gramature night by jrbsvs April 26, 2008

grammatude 

A combination of Gramma(Grandmother) & attitude

Don't know what grammatude is?

Mess with my grandchildren & you'll find out!

grammatude by cyberpope67,BC,Canada April 19, 2015