UB

Ugly bastard

UB is Used when defining the ugly bastard in Hentai, he's usually a 40 yr old man

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UB

Unexpected Boner

Joe was about to stand to shake Jeremy's hand, but was forced back into the chair by an enormous UB.

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UB

an acronym meaning UNGRATEFUL BITCH
man that girl who drives that one black honda accord is a UB
mainly of asian decent and likes to play guys and is cheap and selfish and doesnt like to turn their lights on in their big house

Dont be a UB
man that girl is a UB

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UB

A simple acronym meaning Ultimate Bro. Typically used to describe an action that is more beneficial to your friend (bro) than yourself. Can also be a description of a person who performs such acts.

Brian was pretty bro when he got that girls attention for you, but Joel was so UB by getting her number for you.

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UB

A baby that is so ugly (Ugly Baby) that it is cute.

"Oh look at that UB" person 1
"Wow, he's such an UB" person 2
"Thanks! What's a UB" confused mother
"It just means he's cute" person 1

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UB

University at Buffalo; dominated by liberals. The largest and most prestigious university in New York State.

I'm a computer science major at UB.

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UB

University of Buffalo or Ugly Bastard.

Me: Is UB ugly bastard or university of buffalo?
You: Go kill yourself.

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