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15.
Ud
Ud - short for Urban Dictionary, your at it now.
Guy1: What eta mean.
Guy2: Ud it n00b, goddamn.
by M0D1CA April 03, 2008
 
16.
UD
Short for Roxanol UD, a brand name for morphine sulfate.
Friend: UD be fine. Don't worry. Just remain calm and stop licking the walls.

Junky: Laaalaaa... Ulp! Gaaaaaaaa...
by Commandante Bo March 06, 2010
 
17.
UD
Much Loved abbreviation for the University of Delaware.

(Delaware as in the state, not the river, or town of a different state. Often referred to as "Dela-Where?" for this common common mistake.)

Those not familiar will pronounce UD as the last two letters in "mud", when really it is pronounced as the two letters "U" "D"
Guy 1: "Hey she's hot, where's she go?"
Guy 2: "Oh, she goes to UD."
Guy 1: "Where the hell is that?"
Guy 2: "Delaware."
Duy 1: "Dela-where?"
by UDchicken April 03, 2009
 
18.
UD
UD: Stands for Unintentionally Dumb.
Adjective: A nicer way of calling someone stupid. Can be used when talking about someone that's right next to you, or telling it straight to their face.
Jack: Is he really that stupid?
Jill: Nah, he's just UD.

Pam: Isn't Ray William Johnson a senator or something?
Mike: ....you're so UD.
Pam: Thanks!
by Rebel54x October 10, 2011
 
19.
ud
You searched for ud using a search engine and pressed the first link without thinking well done! You may also notice this is not really a definition, which ud's words are known for not having.
Jack: ud is great!
John: Not if you're looking for definitions!
by Air King June 01, 2011
 
20.
UD
Abbreviation for Undead, used in Warcraft games
omg, double UD watch out for ghoul rush
by roar.maybe? January 11, 2006
 
21.
ud
1. A shorthand contraction of "you would" used in IM conversations.
2. A shorthand contraction of "you had" used in IM conversations.
soma: in TN, ud get the end of the stick for sure
Jenx: dont even try
by ATLmedstudentsrule December 18, 2005