Top Definition
Samoan word for brother. A greeting used amongst Samoans.
A.k.a.: (Us) pronounced:oose

Cutty you know those usos from Uptown?
by Punk Rock Beezy June 19, 2006

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Samoan word for Brother or Sister. Only used by same gender. A female can call another female Uso or a male can call another male Uso. A female cannot call a male uso and vice versa.
That's my uso.
by lizzayeboo January 02, 2013

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A person of Unknown Sexual Orientation
Amy is a U.S.O., she doesn't know what the fuck her pussy wants.
by Amy Kwak March 13, 2014

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UNIDENTIFIED SMOKING OBJECT. WHEN THERE IS SOMETHING STRANGE LIKE A PIECE OF FUZZ IN WHATEVER IT IS YOUR SMOKING.
WE'VE GOT A U.S.O.
by H4X0R 3li73 March 10, 2009

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The Urban Dictionary Mug

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

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The Urban Dictionary T-Shirt

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unidentified submerged object
The people sighted a USO while fishing late last night.
by unown June 05, 2006

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).

Buy the t-shirt