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1.
IYI
Text talk acronym for "if you're intersted?"
"Hey we're gonna smoke out then tease out our hair before the Def Leppard show tonight IYI."
by Hans Delbrook December 24, 2009
 
2.
Coloq. : Are You?
From the word Yis
I'yis comin wi' us?
(Are you coming with us?)
by Ozymandias February 13, 2005