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"

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!

by Griz April 7, 2004