Grimmus

Extreme coolness or supremity, taken from the Purple McDonalds monster.
Not to be mistaken with Grimace

That was most Grimmus
"Nothing can kill the Grimmus"

Grimmus by F yee December 2, 2003

Grimmus Dick 

Similar to blue balls.
Usually acquired when ones sexual partner is not skilled in the sheets.

Shelia gave me a mad case of the grimmus dick. That whore needs to learn how to fuck!

Grimmus Dick by Griz April 7, 2004

Grimmsnarl 

Final evolution of Impadimp in Pokemon Sword and Shield. it turns into a giant slenderman esque beast when gigantamazing. Looks like it could murder your family whether gigantamaxed or not.

Grimmsnarl is one hell of a badass Pokemon.

Grimmsnarl by Necrozma Beam November 5, 2019

GrimmUlqui 

GrimmUlqui is a yaoi pairing from the anime/manga Bleach. GrimmUlqui stands for Grimmjow x Ulquiorra, where Grimmjow is seme and Ulquiorra is uke. It is much more popular than its counterpart, UlquiGrimm.

I read an awesome GrimmUlqui fanfic yesterday!

GrimmUlqui by Dior Crystal August 14, 2011

grimus 

big purple monster from mcdonalds that eats children

daddy, the grimus ate charlie

grimus by Anonymous May 25, 2003

Grimus 

A derogatory term for Afro-Americans. As the use of the word "nigger" has become less frequently used by the masses, the term "grimus" was coined to "hold the black man down".

This term was first used as a deroatory statement when a black man moved to Florida from the Chicago land area and began to turn color from exposure to the sun. When found to turn from chocolate to black to purple a friend of said black man called him "grimus", changing the landscape of racial epithet's forever.

The plural form of "grimus" is "grimus".

"Grimus keeps coming up to me on the train and asking for money!"

"Grimus please!"

"Grimus loves him some collared greens, fried chicken and grape drink."

Grimus by Jay Cutler's a Homo August 24, 2011

Grimmis 

A Grimmis is that fat purple shit that hangs with the hamburgler.

"Holy cow mommy, did you see that fat purple shit?"

"Yes, thats a grimmis, he chills with the hamburgler"

"Grimmis looks like a oval mommy, i'm scared lets never get another happy meal again"

Grimmis by Mason Beveridge June 14, 2004