you had me at (something)

you had me at (something)

You convinced me of something or won me over when you said something in particular (mentioned after "at"). A: "Want to come over and go swimming? Also, my parents aren't around, and they left me money for food." B: "Hey, it's 95 degrees—you had me at 'swimming.' Be right over!" You had me at "free." Where do I sign up?
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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