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Expression of delight or joy, often at unexpectedly good turn of events.

Written form often capitalised. Origin believed to be corruption/mistype of Yay. YSY is to "Yay" what teh is to "the".
YSY I won $500 playing on-line poker last night.
YSY by Tenrex January 10, 2009
Related Words
"Had free tickets to the Vikings/Packers game, but you didn't answer your phone. Brought Tim Tebow instead. YSYL."
YSYL by dulli012 December 5, 2012
a response you give when someone texts you β€œismpitcd” 😩
Someone: ISMPITCD

You: YSYPITCD
IM : hey, you're doing it all wrong!

response : YSYM!
ysym by dave789 July 20, 2005
GF: β€œSTO P YELLING AT ME”

Me: NO YSYDMF
YSYDMF by Kazua Kensei July 20, 2021

ysydlhltwhtt

"you said you didnt love him like that, what happened to that?"
no.
ysydlhltwhtt?
ilys