Definition of ringman:
(n) :
A male boxer or prizefighter.
(n) :
A man within the betting ring of a racecourse; a bookmaker who works in the ring.
(n) :
A male entertainer who works in the ring of a circus.
(n) :
An auctioneer's assistant who spots bids and communicates information back to the auctioneer.
(n) :
A man who works in a ring where animals are exhibited.
(n) :
(obsolete) The ring finger.