look up any word, like fleek:
 
22.
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
 
23.
phaete is the epitome of the definition gronk.
your suck a gronk phaete!
by bemuse September 13, 2007
 
24.
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
 
25.
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
 
26.
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
 
27.
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
 
28.
Australian slang for a teenage shit kid. Can be applied to adults too.
"that gronk sauron narc'd on a guy for hacking him"

"those AOL gronks are so lame"
by IRoNGRoN December 16, 2004