Grundle Butter is greasy Sweat that gathers in the Grundle region, Semi-transparent in color with a refreshing odor.
"Thats just his Grundle Butter."
Verb: Spread or cover (something) with grundle butter
"It's got grundle butter on it"
Verb: "Budget rental trucks pissed me off so bad I grundle buttered their doorknob while they were closed"