Having an over active underarm sweat gland.
I've got such serious jacobies that my dermatologist gave me prescription strength antiperspirant.
by TheGuinnessTooth December 11, 2006

The Urban Dictionary Mug

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The Urban Dictionary Mug

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Top Definition
JACOBY

A PERSON OR THING THAT EVERYONE WANTS TO BE LIKE. SOMEONE OR SOMETHING THAT MAKES PEOPLE LAUGH. SOMETHING THAT EVERYONE MUST HAVE AT LEAST ONE OF. ALMOST LIKE A DRUG THAT MAKES YOU FEELS GOOD.
THE WAY COOL HOST ON MTV! A REALLY HOT GUY THAT ALL THE GIRLS GOT TO GET WITH.

I WAS FEELING LIKE SHIT, THEN I TOOK A JACOBY AND HAVE FELT GREAT ALL DAY!

DID YOU SEE THAT JACOBY, I HAVE GOT TO GET ME ONE OF THOSE!

I WAS HAVING A SHITTY DAY UNTIL I HUNG OUT WITH JACOBY.

by fuah666 February 28, 2009

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

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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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JACOBY--ONE HOT MTV HOST FOR THE KICK-ASS SHOW SCARRED!

A PERSON OR THING THAT EVERYONE WANTS TO BE LIKE. SOMEONE OR SOMETHING THAT MAKES PEOPLE LAUGH. SOMETHING THAT EVERYONE MUST HAVE AT LEAST ONE OF. A DRUG THAT MAKES YOU FEELS GOOD.
A REALLY HOT GUY THAT ALL THE GIRLS GOT TO GET WITH.

I WAS FEELING LIKE SHIT, THEN I TOOK A JACOBY AND HAVE FELT GREAT ALL DAY!

DID YOU SEE THAT JACOBY, I HAVE GOT TO GET ME ONE OF THOSE!

I WAS HAVING A SHITTY DAY UNTIL I HUNG OUT WITH JACOBY.

by YAPMO1 February 28, 2009

The Urban Dictionary Mug

Lotsa space for your liquids.

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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.

Create a mug

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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Total Douchebag that no one likes. Will go out with a girl and be a total asshat to her bestfriend. Breaks promises. Says they will try harder and try less.
Jacoby: I promise to tell her best friend before I break up with her.

*breaks up*

Bestfriend: What. The . Hell.
by IRantForFun October 22, 2011

The Urban Dictionary Mug

Lotsa space for your liquids.

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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.

Create a mug

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 man or young boy who thinks he has a large "thing" but when it comes down to it, he just has a small, acne infested package. He mine as well just swim in grease, it will do his thriving acne some good.
Ew, who would ever want to go out with that hideous Jacoby?
by jackieejackson5 July 10, 2008

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

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

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

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

Buy the t-shirt