you're/he's/she's on

phrase

informal

—used to say that one accepts a bet or challenge

"I bet I can run faster than you can." "OK, you're on."

Examples of you're/he's/she's on in a Sentence

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Maybe there's some in extremis situation, when you're—you're on Samoa or something, and there aren't any official channels. — Daniel R. Depetris, Newsweek, 25 Mar. 2025 Importantly, Google can't remove content from webpages—you're on your own there. — Ryan Whitwam, Ars Technica, 26 Feb. 2025

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“You're/he's/she's on.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/you%27re%2Fhe%27s%2Fshe%27s%20on. Accessed 30 Sep. 2026.

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