U.B
When you have an "Uncontrollable Boner" and need a hall pass to leave class early, commonly used as a nickname
Man 1: Hey, Whats your name?
Man 2: People call me U.B.
Man 1: Whys that?
Man 2: I CANT CONTROL MY COCK.
by The Lindenhurst Crew April 03, 2008

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u.b
this means you got an uncontrolable boner!
damn man ive got a u.b
by ice kidd March 31, 2008

The Urban Dictionary Mug

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The Urban Dictionary Mug

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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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U-B
An exclamation yelled whilst making a u-turn in an unauthorized, highly dangerous area; often cutting off other motorists minding their own business.
"Holy Shit, you can't turn here...you're gonna wreck that asian kid on the tricycle...watch out... U-B!!!"
by The T. isn't silent. May 06, 2009

The Urban Dictionary Mug

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The Urban Dictionary Mug

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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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UB
Under a Blanket
ON the phone: "Hey Connie, where are you at?"

Connie: "UB"

Me: "oh, you're at home"

Connie: "who said i was at home? i just said i was under a blanket"
by chuck sternobloids January 23, 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

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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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UB
UN-BOYFRIEND. Pronounced EWE-BEE. For a commitment-phobic woman, a UB is a man she is dating but she does not want anyone calling him her "boyfriend." She is often dating (and enjoying) several UBs at once. Of the ilk of friends with benefits or fuck buddies.
Girl_One: She has so many boyfriends, doesn't she?

Girl_Two: Naw, those are her UB's, she's just a cougar who can't commit.
by baconfeet June 01, 2007

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

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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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üb
A contraction of über-Christian; refers to people whose religious beliefs exceed the theoretical boundary of a normal person. Often found condemning heathens or reciting the Bible.
Dude, that chick is smokin' hot! Too bad she's an üb.
by Alex French November 17, 2003

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

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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

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Ub
1. When a teenage boy flirts and doesn't accept it yet he flirts with every girl that looks his way.

2. When someone flirts over and over again and denies it but then in a late night phone conversation starts to talk about how every girl exept for one are awesome at flirting
"hey where is alex?" "he is being his Ub self with that girl"
by 1big2boi3 April 29, 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.

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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.

Buy the mug

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