slave driver

Noun	1.	slave driver - a cruel employer who demands excessive work from the employees Synonyms: Simon Legree
	2.	slave driver - a supervisor of slaves at work

Big Brother, Simon Legree, absolute monarch, absolute ruler, all-powerful ruler, arrogator, auditor, autarch, autocrat, boatswain, boss, caesar, chief, commissar, comptroller, controller, czar, despot, dictator, disciplinarian, driver, duce, floor manager, floorman, floorwalker, foreman, gaffer, ganger, hard master, head, headman, inspector, martinet, monitor, noncommissioned officer, oligarch, oppressor, overman, overseer, pharaoh, proctor, sirdar, stickler, straw boss, subforeman, super, superintendent, supervisor, surveyor, taskmaster, tyrant, usurper, visitor, warlord