Definition of main man noun from the Oxford Advanced Learner's Dictionary a man who is important to you because he is a trusted friend or employee; the most important man in a situation Of course I trust you—you’re my main man! The manager said I was going to be his main man in midfield.

Definition of main man noun from the Oxford Advanced American Dictionary a man who is important to you because he is a trusted friend or employee 'Course I trust you—you're my main man! The manager said I was going to be his main man in center field.

Define main man. main man synonyms, main man pronunciation, main man translation, English dictionary definition of main man. Informal n. 1. a. A man who is important or influential, especially as a member of a team or organization: the baseball team's main man. b. One's best male...

one's best and most trusted male friend. the most reliable, important, or respected man. one's main boyfriend.