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1.
UDL
Stands for United Distillers Limited. A popular alcoholic beverage consumed by teenagers (especially at parties). Mostly shown off by girls by posing with their UDL cans in their pictures which they often then publish on facebook for attention.
Linda: Oh My God, i forgot to put the UDL can in the picture!
Hannah: Why? What's the matter?
Linda: IT'S FOR FACEBOOK.
by Melverine April 24, 2011
 
2.
UDL
Uncle Doug Laugh- The entertaining laugh of your uncle doug that sounds like a deeper version of bevies and butthead. It is a mix between the common laugh "Hah" and the sound "Huh". Can be used in place of "Lol"
Dad: Did you check out that funny Jockey commercial I sent you?

Al: Yea it was funny UDL
by Loving Nephew January 10, 2012
 
3.
UDL
Urban Dictionary Loser.

Unable to tell the difference between making a phonebook and posting a word on the Urban Dictionary.

These spammers constantly post a description of people they are either mad at or madly inlove with and just annoy the hell out of the editors.

They continue to repost when it is unpublished because they are too dim to read the rules.

Generally they are just annoying and just add easy decisions to the editors decision count.

These people should probably bee exterminated.
Shawn is so hot and smart bla bla bla

Dont publish

Whaaaa?? I'll post it again.

NO NO NO YOU STUPID UDL THIS ISNT FACEBOOK WE DONT WANT LISTS OF EVERYONE IN THE WORKD WHO EXISTS!!!!
by Anna's February 07, 2010