Definition from Wiktionary, the free dictionary
stockboy (plural stockboys)
- A young stockman.
2009 April 19, Allen Salkin, “He’s the Man Who Sets the Table”, New York Times:
- When an aunt who was an actress helped him find a job in the William Morris mailroom, where would-be agents traditionally start, the salary was not enough to support him, so he took a second job working as a stockboy at a Macy’s in New Jersey.