A hoax/shock site featuring young kittens being forced into too-small containers (jars, cubes, etc.) with a claim that you can grow kittens to be a certain shape, much like Japanese square watermelons.

See also Bonsai Kitty.
Troll: Hey guy, did you ever hear that kittens can be grown into cubes?
Guy: No....
Troll: bonsaikitten.com
Guy (after viewing site): ....Wut

Guy: Yea, Bonsai Kittens is definitely a shock site.
by computercat682 February 4, 2015
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A tree that is small, stupid and has no self worth.
You have a lot of trees in your yard. Most of them are pretty big but that one over there is nothing more then I Bonsai Douche!
by ducknukem2999 December 9, 2008
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A term used to describe a moment of excitement
Joe just won 1500 dollars on the blackjack table and yells " Bonsai mother-fucker"
by Mrchipper May 16, 2010
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A person with a small penis and small balls.
made not so famous by TRIPOD.
Person1: you suck
Person2: you have bonsai cock and balls
by fishface1234567890 March 21, 2007
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The local taskforce designated to find and release Bonsai Kitty from captivity into the wild. Usually still in their jar shape formation
"This is the BKP, If you know of any Bonsai Kitty in your area please dont hesitate to call us. Thank You!"
by {[BKP]} December 10, 2003
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When you tend to a relationship in order to keep expectations and situation the same (as opposed to cultivating and nourishing a relationship). A bonsai-ing relationship will stay exactly the same.
Are you guys getting serious? Hopefully not, I am bonsai-ing.
by Bonsaimaster October 14, 2018
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