1. Have sexual intercourse with.
2. To hit, particularly hitting a person on the head.
3. During the hayday of MUDs (Multi-User Dungeon games, text-only roleplay like adventure games played mostly over the net) a commonly said or done action as a sign of mild disapproval or for no particular reason. Polite convention require(d/s) the bonked individual respond by saying oif. Some believe not doing so will upset the bonk/oif balance in the universe, with great consequences. Not saying "oif" is somewhat akin to a ( without a ) or unmatched quotation mark. The practice is still somewhat alive on IRC and (to an even lesser degree) other means of net chat. It has, however, to a large degree been replaced by the fish slap.
I totally bonked her yesterday dude.
Shut up or I'll bonk you're head.
y bonks x. x says "oif!"
by Patrik Lundin October 6, 2004
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A drug used to get high or "go bonkers". Bonk comes in may different forms including: pills, drinks, and tea. The original form of bonk is a brown plant that looks similar to tobacco. Some effects include feeling euphoric and going absolutely bonkers.
" Hey bro, you tryna bonk later?"

"Dude, i just bonked in the bathroom, i'm too bonkers."
"I was bonking my bonk, want some?"
by Frickenchimken April 26, 2019
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Person 1: Bruh u nasty as shit why u eatin the bonk?!

Person 2: Shut yo dumb ass up u already know I’m a Certified Bonk Eater ™️
by asfdbfdweqdsgfnewrhgjf November 15, 2018
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A Black country (English area)slang term for Little Hill
by Rag arse July 1, 2011
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A very old outdated term for sex. It was once considered cool to say bonk in 1996 but if you use the term today you will sound like a douche bag.
"I want to bonk that girl with the scrunchy on," said the loser with a boner.
by lola24 April 8, 2010
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Another term for poop. Can be used in place of the word poop or to describe the action of pooping.
Damn I just took a HUGE Bonk in your toilet man.
Bruh this Bonk smells like death.
by Petezc123 February 5, 2021
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This word is used to instantly win an argument If someone is insulting you. For example, someone is roasting you, and in response, you say "Bonk". They will be visibly confused to why you just said Bonk randomly, this works even better if you walked away right afterwards. Bonk means "Fuck you bitch", and is like a code work that only you and select others will know. The power of absolute decimation is now in your hands.
by Walter Walters November 24, 2021
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