A term of affection used to describe a human who lives their life and consumes their environment like a grotty pig. Used to describe a person who is dirtier than a Grot.
Mum: Laura have you cleaned your room?
Laura: Not yet!
Mum: Laura, you are such a GRONK. Clean it now!
a total loser. Usually slumped in posture, with varying shades of colour in their hair. can be seen anywhere and a gronk detector is not needed to find one