Urban Dictionary: UB

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Unexpected Boner

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

by bellirubbre April 13, 2009

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Jul 30 Word of the Day

water slapper

A swimmer

A kid in my class is a water slapper

by jgyhsref January 22, 2020

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Ugly bastard

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

by Marsy. February 05, 2020

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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.

by DJJaySee November 09, 2011

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U.B

when you get a bonner when you dont need one.
Unnecessary Bonner.

i had a U.B this morning when i woke up.

by mike.l July 09, 2006

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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

by UBsarebaddontbeone April 25, 2009

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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

by UB-UB-UB November 16, 2011

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