The Question and Answer section for Narrative of the Life of Frederick Douglass is a great resource to ask questions, find answers, and discuss the novel.
That would be whipping.
Slaves sometimes eat fruit from plantations; some feign illness. Others, like Douglass, fight back like Douglass did with Covey.
They did any labor that their slave owner commanded. Jobs included farm work, heavy lifting, planting, construction, and domestic duties.