'man-to-man' definitions:

Definition of 'man-to-man'

From: WordNet
adverb
Directly; "we must talk man-to-man"
adjective
Forthright and honest; "had a man-to-man talk about the facts of life"
adjective
Being a system of play in which an individual defensive player guards an individual offensive player; "one-on-one defense" [syn: one-on-one, man-to-man]