[ C ]UKslang a cigarette: 香烟 a packet of fags一包烟 She's gone outside for a quick fag.她出去抽根烟，很快就回来。 fag endThere were fag ends all over the floor.地板上到处都是烟头。
fagnoun (GAY MAN)
[ C ]mainly USoffensive an extremely offensive word for a gay man（冒犯语）男同性恋者
fagnoun (TROUBLE)
be a fagmainly UKinformal to be boring and tiring to do: 是苦差；是枯燥的活儿 It's such a fag to have to make your bed every morning.每天早晨要收拾床铺真是个烦人的活儿。
fagnoun (YOUNG BOY)
[ C ]UKold-fashioned (at some large British private schools) a younger boy who has to do jobs for an older boy（某些英国私立学校中受高年级男生使唤的）低年级男生
Idiom
the fag end of something fag verb[ I ] UKold-fashioneduk /fæɡ/ us /fæɡ/-gg- If a younger boy fags for an older boy at a British private school, he does jobs for him.（英国私立学校中低年级男生）听高年级男生使唤