you're on!

An exclamation of agreement to something that was said or that is happening, often (but not always) a challenge or a wager. A: "Want to see who can run to the end of the road the fastest?" B: "You're on!" A: "I bet you $50 that my team beats yours in the championship." B: "You're on!"

Common Names:

Name	Pronounced	Usage
Jupiter	JOO-pi-tər (English)	Roman Mythology (Anglicized)
Zef	ZEF	Dutch
Deb	[deb]
Svarog	-	Slavic Mythology
Leonzio	-	Italian
Joy	[dʒɔi]