1 definition by grunk

A shortend term for the name used to describe a Grunka-Lunka, who feature prominantly in the Futurama episode "Fry and the Slurm Factory." Grunk is commonly used as an insult (to claim that a person or thing resembles a Grunka-Lunka, or acts like one in anyway.) But is mainly used to replace the phrase idiot, sadcase, fucktard etc, especially if you can't think of another term to call you're friends.
Example 1
Jake: "Hey, you reckon we should go to Matt's house?"
Nathan: "No, you fucking grunk, his house is a shithole."

Example 2
Jake: "Jakea-lakea, spanka-la-matts, lets go over to matts"
Nathan: "No, you fucking grunk, his house is a shithole."
by grunk December 9, 2006
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