Focuses purely on their muscles rather than education, works out alot, an absolute bogan, one who's IQ is lower than the $5 entry fee at the gym.
Threatens everyone and tries to start fights with whoever.
Gronk: FUCKIN' AY CUNT JUST GOT BACK FROM THE GYM AE FUCKIN GREAT
Person: cool.
Gronk: YOU FUCKIN WANNA GO ME!!
Person: no.
by S12 June 30, 2013

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Being that sober guy at a party to creep on drunk, taken girls.
Man did you see Maria last night? She was totally getting gronk'd by Dan.
by AjDurH April 10, 2011

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it's like a huge woman, y' know
she is a tall big boned gronk
by rhubo June 22, 2010

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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

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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

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Someone that is a shithead, they are worse than a Noob
Daniel can get much better because hes from Redfern and hes a gronk.
by Nikkiiscooooool February 15, 2009

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a turtle that falls of a table.
john " oh no, he fell of the table again."
megan " what a gronk"
by i am your super duper computer September 27, 2009

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