buddy up with someone
buddy up with (someone)
1. To pair together with someone. OK, kids, buddy up with a partner and start working on the assignment.
2. To be overly or obnoxiously friendly with someone, often for personal gain. He's clearly buddying up with the teacher so that she'll relent and give him extra credit. The new guy needs to calm down and stop trying so hard to buddy up with us.
buddy up (with someone)
in. to share living space with someone; to share something with someone. Let’s buddy up, okay?