Meaning: You can say "You're on!" if you want to accept a challenge, a bet or an invitation.
- Batman: "I bet I can do more push-ups than you can, wonder boy!" Robin: "You're on, Batman!"
- After a hard day's work, Bruce said, "Feel like throwing back a few beers down the pub, mate?" and Barry said, "You're on, matey! Let's go!"
Maurice said, "You're on!" after Jean-Paul had said