A Gronk is an unusually large woman. A Gronk need not be fat (though most are) Often they are the tall gawky daughters of Norse races. The average ratio of Gronks to fit women is about one-in-four, per party. Gronks are often Wingwomen, allowing no girl in her group to stray and talk to any men who do not also chat up the Gronk herself.
The Gronk is often loud and a big joker. Asserting herself into conversations and loudly making jests in the hope that men will notice and forklift her off to bed.
I couldn't get close to Mandy last night. That big Gronk at the table wouldn't let me near her.
by Mudknuckle Circus November 8, 2013
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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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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
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is a dumm cunt, or a geek that thinks he is hard cunt
by HOSSAM August 23, 2003
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a complete loser and a useless motherfucker
can be intended to be friendly or hurtful

this word is widely used by Australians and New Zealanders
by Nidkl November 3, 2018
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someone who thinks they are better than they actually are and act like kingshit and usually bad looking
Guy 1(Matt Dowley): So whats up, wanna get naughty? ;)
Girl 1:(regular chic) NO! You are Gronk I wouldnt do anything with you
Guy 1: But im perfect, long, wide everything a girl you want
Girl 1: Bull, your gronk..
by OMGALECBERNII ^-^ December 11, 2010
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