Definitions by BadgerSOS

Gurmuki 

To do something utterly amazing or utterly devastating. This is a word that knows no middle ground.

After your mate has just won on Halo:
"Dude you just gurmukied that shit"

After you have just blown your load:
"Man I gumikied all over the place"

Gurmuki by BadgerSOS May 30, 2013