Wiktionary
n. 1 A male employed to run errands. 2 (context management pejorative English) Someone nominally in a responsible position who performs relatively menial tasks for a senior manager.
WordNet
n. a boy who earns money by running errands [syn: messenger boy]
Usage examples of "errand boy".
That Fitz was an errand boy for Verity, and had been my stable boy, but wasn't much more than that.
I have enough to do without playing the errand boy for Northamptonshire.
He watched the arched doorway of the librarykeenly, anticipating the distractions of the hour to cover theemergence of his errand boy.
In fifteen years he'd moved steadily sideward until he wound up in Strategic Planning, a glorified errand boy for artificial sentience programs running resource-allocation software.