Top definition
Under Age Booty. This term arrives from one of Maryland's elite overseers of the young. Coined in 2007, the use of this term has been passed around in a tight circle (no pun intended) of friends and acquaintances. Whenever one sees a UAB, one must at least acknowledge the presence of said child. The official saying of UAB fans is: The younger, the better.

The best place to find the U-est UABs is the hospitals when they are born. However, access is not always available so it is suggested to go to child's places such as Chuck E Cheese or Pump It Up. Although public demonstrations of UAB love is frowned upon, a UAB-ist should show it proudly and high-five, hug, kiss, then have intercourse with the finest and U-est UAB they can find.

This definition has indeed been written by the originator: ShiningSeoul.
Bob: Hey you see that UAB over there?
Todd: Yeah?
Bob: So tight.
Todd: YO WHAT THE F---

Johnny: Do you know who's cute?
Ralph: Your brother.
Johnny: ...why?
Ralph: Cause he UAB.
Johnny: Dawg, you is gay.
by ShiningSeoul August 29, 2008
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2
yo Kenny what you doing, going to see Richards little bro that u.a.b. is FINNEE!!!
by coreef December 23, 2008
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3
She Is sucha U.A.B
by KURDIEEE January 30, 2011
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4
u a b stands for your a babe
boyfriend: uab

girlfriend: thanks babe u a babe too
by informant2 September 10, 2009
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5
Dude 1: Wow that cheerleader is one UAB
Dude 2: Dude, i know but atleast she has some bitchin nipplage
Dude 1: Tru Dat
by Sir Sex a Lot March 06, 2007
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6
Sara: omg peggy is such a UAB
Jennifer: ikr even her name is ugly
by Faceless Alison July 28, 2016
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The vengeful act of crapping on a lover's chest while they sleep.

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7
A generic, knock-off school from the great University of Alabama (in Tuscaloosa), but in Birmingham..
Also known as University of Asians & Blacks
Person A: "Um, where did our math teacher King Hau go to school?"
Person B: "Uh, I think it was that generic school..in Birmingham..Oh wait, yeah, I remember..The University of Asians & Blacks! UAB!"
by UAB September 16, 2006
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