The act of being absurdly awesome.
Lets do a kotaro this weekend.
by Anonymous Panda October 12, 2013
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the perfect human. while it may be having a massive penis, being popular among with girls, is smart. a kotaro is someone who is loved by the large majority of people
person 1: dude, did you know about john?

person 2: yeah dude john is such a kotaro!
by Urdednan December 1, 2016
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buys beats to look cool, gets fake supreme for breakfast, and finishes off with dissing on people who wear thrashers, thinking he can cuz he is a #sk8er for life.
Don't ever be a Kotaro. Don't. You can be a failure in life. Just don't be a Kotaro.
by tunaktunaktunak1234 January 17, 2018
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Thicc owl boi that comes up in the second season in haikyuu on the team fukurodani. He is the captain and the ace on fukurodani and he is also in the top five aces in Japan. He also says hey hey hey a lot and is also friends with tetsuro kuroo
Bokuto kotaro: Hey! Hey! Hey!
by Maddie200529 May 13, 2020
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A leader of the Fuma ninja. Followed under th Hojo clan during the warring states period in Japan. Believed to have killed the famous ninja Hattori Hanzo in battle. He is usually portrayed as mysterious and dark looking, chaos loving, Hanzo's arch rival, and bent on keeping Japan from being united. He is also shown as a "bad guy" in the game Samurai Warriors 2.

(I personally think he's the coolest character in the game)
Fuma Kotaro: Chaos is never satiated.
by KingKarnage May 29, 2007
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An anime about a four year old boy named kotaro who, ironically lives alone. Throughout the series we uncover more of his past neglect from his parents. He lives in an apartment building with a burnt out manga writer and animator, a lady who works as a hostess for those like rent a woman for a night, a man who has a child of divorce and some other lady who no one cares about because she shows up like halfway into the series
Person 1:“Hey what’s your favorite anime?”
Person 2:“It’s kotaro lives alone
by averygayman April 10, 2022
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When a gay guy gets mad at his Boyfriend and cock blocks him for a week
by Dogchi December 3, 2020
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