ˌman-to-ˈman BrE AmE adjective [only before noun] informal
1 . if two men have a man-to-man talk, they discuss something in an honest direct way
2 . playing a sport in such a way that one person on your team tries to stay close to one person on the other team
—man-to-man adverb :
You two need to discuss this man-to-man.