Top Definition
UYB
UYB = Use Your Brain.
usually use for telling friends or jokes.
UYB, badass!!
by Suicideynxxx September 15, 2010

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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

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

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UYB
Acronym: Up Your Bum/Butt is a safer alternative to femoral injecting for drug users.

While UYB is a safer alternative for injectors it carries greater risks than other non-injecting ways of taking drugs such as smoking, swallowing, or snorting.

Drugs taken UYB have a faster and fuller effect than when smoked.
My groin is pinned to shit, gonna have to go UYB.
by EJO, UK 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