gronk 

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

your such a fucking gronk, piss off mate

gronk by Nidkl November 2, 2018

Gronk 

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..

Gronk by OMGALECBERNII ^-^ December 12, 2010

gronk 

phaete is the epitome of the definition gronk.

your suck a gronk phaete!

gronk by bemuse September 26, 2007

Gronk 

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!

Gronk by mrnixxin July 18, 2009

Gronk 

A Gronk is likely (but not limited to) a person from Geelong, often attending schools of higher-socioeconomic status. An extremely unpleasant person or unwanted guest. Often argues his misguided viewpoints that have no ground in reality. Can be a sometimes still be a nice person, however.

"Fuck here he comes again" "Fuck off James", "Hes such a gronk"

Gronk by Jocco_69_420_blaze it May 22, 2019

Gronk 

Chatty, putrid kinda person.

Australian insult/swear

Shut the f*** up ya lil gronk, go f*** ya nanny!

Gronk by Browniehatch December 3, 2019

Gronk 

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".

Gronk by winilula January 16, 2009