get (one's) signals 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 signals crossed. My mom and I got our signals crossed, and now there's no one here to babysit the kids.

Common Names:

Name	Pronounced	Usage
Thamar	-	Biblical Greek, Biblical Latin
Malachi	MAL-ə-kie (English)	Hebrew, English, Biblical, Biblical Latin
Susheela	-	Indian, Hindi
RÍGhnach	-	Irish Mythology
Huntley	['hʌntli]
Aneirin	-	Welsh