Ultimately a game of Conkers but using your testicles instead.
"Oi jon, grab your goggles...we're off for a game of Bonkers! "
by Tanka18 October 15, 2015

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A stupid, dopey guy.
I forgot that my exam is tomorrow! I'm such a bonker!
by Bonker180 September 08, 2016

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The heady crazed state achieved by a group of giggling people while indulging in a frenzied round of bonking each other's noggins with empty 2-liter plastic soda-bottles. The loopy euphoric mood can be heightened even more by (1) using the jumbo-size 3-liter bottles instead of the 2-liter size, since the bigger firmer bottle produces a more solid *thunk* and bounces higher with each klonk, and/or (2) using two bottles at once --- one held in each hand --- to simultaneously pummel the heads of your two nearest neighbors in the crowd.
My buddies and I went totally bonkers at the beach party last evening; it had been a really hot day, so we had accumulated such a sizable pile of empty soda-water bottles that there were more than enough for all of us to each swing two bottles apiece.
by QuacksO June 29, 2016

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another word for boner
dude today in class I had a huge bonker, I hope Lisa didn't see it
by overtheshoulderboulderholder July 24, 2015

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The act of getting completely crunk (usually with bankers club) and going wild then passing out
Eric- "Hey Finn look at Timo, I think he got to bonkers because he just pissed on Tom's rug and now he is asleep"
by Frederick Crumster October 22, 2009

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Happy Hardcore/Hardcore compliation CD. Currently on its 11th incarnation, features DJ's such as Scott Brown (god) Hixxy, Sharky, Dougal.
have u heard that new bonkers CD? its amaaaaaaaaaaaaaazing
by hardcoretilidie February 25, 2004

The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

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The Urban Dictionary T-Shirt

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A condom: Mixture of "bong" symbolizing the akward sound made in cartoons when a male gets a boner and "ker" which is a wanna-be-cool suffix that is supposed to mean "cover" .

Cover the Boner = Bonker.
Dude # 1 - I got a huge boner the other day but my date wouldn't give in... Something about not liking diapers?

Dude # 2 - Your an idiot ! You could've just put on a Bonker !
by SheletreCina May 21, 2010

The Urban Dictionary Mug

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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