1. To clear the state of a wedged device and restart it

2. To cut, sever, smash, or similarly disable.

3. The sound made by many 3.5-inch diskette drives.
I'm gonna Gronk you up!
by Haxor November 21, 2002
An Australian term for a total yobbo, derro, or bogan.

Not:

"damien says:
a hot alternative girl"
Check out the gronk over there with the stubbies, flanno and longneck in a brown paper bag!
by Halez September 23, 2007
phaete is the epitome of the definition gronk.
your suck a gronk phaete!
by bemuse September 13, 2007
In sports, seriously injuring yours or someones knee.
"Derek Rose gronked himself in the playoffs a few years ago"

"I can't wait to gronk your Quarterback in Madden"
by therealteanor September 01, 2014
Pregnant Prostitute, Used as a derogatory term due to its status.
Wow, you're such a Gronk!

Look at that Gronk on the sidewalk. :O
by Informed Australian October 22, 2013
The sound that symbolises true Metal music and everything associated to said music. Often used in conjunction with the Devil horns \m/ at a concert.
Slayer: (Plays "Angel of Death")
John: GRONK! throws the goat
by Thunder Goat March 29, 2010
A bumbling, clumsy, incompetant or otherwise ungraceful person; Someone with little grace or couth. An oaf. See also: a Lindsay
Lindsay is such a gronk. You can hear her stumbling towards you a mile away!
by mrnixxin July 18, 2009
A dinosaur utterance as found in Johnny Hart's syndicated comic, B.C.
Cell 1: The Apteryx is standing in front of The Dinosaur. The word bubble over The Apteryx reads, "I am The Apteryx, a wingless bird with hairy feathers."
Cell 2: The word bubble over dinosaur reads, "Gronk".
by winilula January 16, 2009

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