get (one's) lines crossed

get (one's) lines crossed

To have a misunderstanding or miscommunication with someone else. I'm sorry I'm late, I thought we were getting here at 8—we must have gotten our lines crossed. My mom and I got our lines crossed, and now there's no one here to babysit the kids.
See also: crosse, get, line
Farlex Dictionary of Idioms.

get your ˈlines/ˈwires crossed

,

have crossed ˈlines/ˈwires

(informal) misunderstand each other: I think we’ve got our lines crossed somewhere. I said Venice, not Vienna. We must have got crossed wires. I thought you were going to drive, not me.
This refers to telephone wires/lines that are not connected properly.
See also: crosse, get, line, wire
Farlex Partner Idioms Dictionary
See also:
  • be at a disadvantage
  • at a disadvantage
  • be pressed for time
  • a run on (something)
  • be pushed for time
  • a rush on (something)
  • address (one's) comments to (someone or something)
  • address comments or remarks to
  • address (one's) remarks to (someone or something)
  • be in it for