OCO
abbreviation for 'oh come on' when using instant messanger.
Screen name 1: I invented pencils!
Screen name 2: OCO!
by Laura November 11, 2003

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The Urban Dictionary Mug

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Top Definition
oco
A: a ruthless gang of street theives.

B: a drinking, wrecking, skating team.

c: a clan of parklers parkle
a- you see those oco boys?
b- yeah, they really tore shit up.
by chris.keebler June 27, 2004

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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OCO
Overly considerate of others. Noun or verb. You can be OCO or you can act OCO. A person who is being OCO will put strangers before themselves and their loved ones.
You shouldn't have let that person with the cart full of groceries go in front of you. You were being totally OCO.
by glowrat January 27, 2016

The Urban Dictionary Mug

Lotsa space for your liquids.

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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