fag

Amongst other things, a derogatory term for a homosexual (US), a cigarette (UK), a snivelling junior pressed into the service of a senior in a boys’ public school (UK).

Cockney Joe in NY:
“Cor blimey, I’m gasping for a fag.”
“Couldn’t spare us a fag, could you guv?”
“Know where I can get some fags round here, mate?”

Yank in Soho (London): “Fag!”
Companion of Yank’s victim: “Give him the cigarette, fluffykins, and maybe he'll go away.”

In the public school setting:
“Where’s Smithers?”
"Licking the floor of my study.”
“How dare you steal my fag, Hobson? It’s pistols at dawn for this!”
“I’m not afraid, I’ve seen you trying to play cricket.”