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1.
Stands for "Urban Dictionary it or something".

When one of your not-so-Internet-savvy friends asks you what a simple thing means, tell them to Udios.
Guy 1: You went out with that ugly chick from Science? FFS!

Guy 2: FFS?

Guy 1: FFS, go Udios.

Guy 2: ._.
by XPeaceChill June 23, 2010
 
2.
A slang name used by sluts and/or drunkin whores to describe a popular club in Westren Canada.
slut one - ``ì cant wait to go to udio!``
slut two- `` i know! im going to get so drunk!``
by DJ Heavy C March 21, 2010