Used to explain when something you eat is so gigantic all you can do is grunt and chew.

Slang: can also be used to describe the male genitalia.
Example 1
Guy 1: Dude why are you grunting so much?
Guy 2: because this burger is just so Gigruntic.

Example 2
Girl: My new boyfriends dick is so Gigruntic I can barely fit it in my mouth.
by TheInvader July 10, 2011

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.

×