The Collaborative International Dictionary
Nightman \Night"man\ (n[imac]t"m[a^]n), n.; pl. Nightmen (n[imac]t"m[e^]n). One whose business is emptying privies by night.
n. (context historical English) A gong farmer, a person whose job is emptying privy by night.
Usage examples of "nightman".
After a while the nightman took a nap and Parker sat in the office, smoking and looking out at the truck.
This afternoon, when his van was still missing, I mentioned it to the manager, and this is what she told me: According to the nightman at the gate, Dennis left before daybreak, right after he came in.