win kitty

a term used for when something is a win, but with the additional 'kitty'. hence making it 'Win kitty'. Often said as a alternative to 'Yes!' or 'Yay!' or any other happy expression. Win Kittty was popularized by John and Hank Green of the vlogbrothers, a youtube fandom known as the nerdfighters.

"I just got the high score on Mario Kart!"
"Win Kitty!"