you('ve) lost me

you('ve) lost me

I don't understand anymore; I've become confused about or disinterested in what you're saying. Other pronouns can be used to refer to different subjects and objects of the phrase as well. Sorry, you've lost me—when exactly am I supposed to pull the lever again? I was with you for most of the story, but you lost me when you started talking about vampires. I could tell by the expression on her students' faces that she'd lost them.
See also: lost
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

you've lost me

I can't follow what you're saying, I'm puzzled or bewildered. For example, Please explain it again; you've lost me. This turn of phrase transfers losing one's way to discourse. [c. 1960]
See also: lost
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
See also: