go between
1. verb To move in between two people or things. The teacher quickly went between the arguing students to separate them. What the heck was that? I think some small animal just went between two parked cars. You expect me to go between a mama bear and her cub? I don't think so!
2. noun One who serves as a messenger between two people or groups. In this usage, the words are usually hyphenated. I'm sick of being a go-between for you and Dad—can you please just talk to him directly? Come on, just make up with Marie so that I don't have to be a go-between anymore. My boyfriend and I had to return each other's stuff after our break-up, but we didn't want to see each other. Thankfully, my sister volunteered to be a go-between.
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.