Bonk is the slang word used in hawaii for the english word "ditch".
It is mainly used by "dirty kids" on the westside of Oahu in the town known as Waianae.
It can also be used to describe something that you dont like.
English educated speaker..
Hey Andy, why did you ditch me the other night at the dance? I was looking forward to dancing with you.
Waianae slang speaker..
wat andy you faka! why you wen bonk me da oddah night at da dance? i wanted fo dance witchew!