Top Definition
The act of pleasuring oneself with Nickelodeon's trademarked Gak product; preferably while watching any Nickelodeon, Snick, Nick at Night, Nicktoons, TeenNick or Nick Jr. program (Double-Dare, All That, Power Rangers, etc.)
I won't be able to make it to the party this evening. There is a Are You Afraid of the Dark marathon on Nickelodeon that I will be Gaking-off to all night.
by MarkSummers4ever October 07, 2013

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×