Top Definition
The gorgeous frontman of The Maine, a band from Arizona. His birth name is John O'Callaghan, but he is often refered to as simply John O.
Girl 1: Hey that guy is HOT! What's his name?
Girl 2: JOHN O, duh.
von xtina101 14. August 2008

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A name of a misunderstood individual. He is talented, heartfelt, and certainly not gay. Johno always trys to do whats best for people although they're not always trying to do the same for him. He likes a girl, who doesn't even realize he likes her. He's your commen man hero. He gets all the girls to like him, but they all want to be his best friend. He's always the bridesmaid and never the bride.
Johno is so cute, I want to be his bestfriend.
von TherealLoser 21. November 2011

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A term used to signify the highest form of bro-ism. This word is used to address a peer or ideal with great respect and care.
"Whats happening Johno, you were really shredding the gnar gnar today!"

"Excuse me Johno, can i get an autograph?"
von Turk Nunya 5. April 2010

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Lotsa space for your liquids.

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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A gay individual often seen around childrens playgrounds. Most johno's are noted to have micropenises.
Have you seen that creep?
Oh, that's just a johno.
von Alex E Bailey 27. Januar 2008

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The Urban Dictionary Mug

Lotsa space for your liquids.

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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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A gay person, usually with curly hair, a small penis, and very little pubic hair, usually likes the same gender
Ha ha that guy is such a johno
von Kieron Mitchell 27. Januar 2008

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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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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