Bonkgo is the longer term of bonk or the rejected term bonko. The word bonkgo belongs to the phrase Bingo Bongo more like Bingo Bonkgo. This phrase means the recipient or sentence is getting bonked or you could throw it in group chats as a random saying.
Some individuals will resort to correcting this statement by saying bonko instead of bonkgo which is very wrong.

A term used to reference cannabis/marijuana/weed.