Top definition
1. The act of riding a plasma scooter down steep hills being awesome and hardcore. Usually done with a group known as the plasma gang.

2. The act of being awesome or hardcore.

3. Act of being a Gnardogg no matter what age.
Dude, if the Bellarmine security catches us gnardoggin, we're all named Tim.
by Timtimtim...Ace August 18, 2010
Get the mug
Get a Gnardoggin mug for your buddy G√ľnter.