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1.
YSR
Netspeak for "yeah, sure, right". Used sarcastically to show that you don't believe what somebody is saying in an online conversation.
Fatty says: im gonna start going to the gym every day
QueenOfSarcasm says: YSR.
by ArtGrrl March 13, 2008
 
2.
ysr
acronym for Yellow Sex Rat

1. Pichu
2. Pickachu
3. Raichu
Steve: I love you YSR
YSR: Picka?
by T-Mackilicious October 07, 2006