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2.
sby
Short for "somebody".
Hey, sby rub my back, or I'll transform into a pig!
by August Lilleaas September 26, 2006
 
1.
SBY
The acronym for Sucks Being You.
Hey, I can't get a date for the prom...
Dude, SBY.
by Getitrightallnight June 27, 2012