Wiktionary
utility man
n. (context US English) A baseball player who plays at no special position
WordNet
utility man
n. a baseball player valued for the ability to play at several positions
a workman expected to serve in any capacity when called on
Usage examples of "utility man".
He was the one who was going to pose as secretary, valet or utility man to his future relative-in-law.
Another row resulted, and this nearly cost the utility Man his position.
He worked as a night watchman, hawked potatoes on the street, pasted labels in a cannery warehouse, was utility man in a paper-box factory, and water-carrier for a street railway construction gang, and even joined the Dishwashers' Union just before it fell to pieces.
Jones moved back as the SWAT utility man approached with a coil of 7/16-inch rappelling line.