1. one who informally leads a small but well-trained crew of amateurs into a fight or competition.
2. a homosexual, usually the top.
3. to vigorously batter about the face and neck with a soft and blunt object.
2. Bernard's gay lover always refers to him as a master coxman because he always gives and never receives.
3. Bernard's going to coxman you if you don't pay the $20 you owe.