fag (fags plural )
1 n-count A fag is a cigarette.
(mainly BRIT)
INFORMAL
2 n-count A fag is a homosexual. (mainly AM) INFORMAL, OFFENSIVE
fag end (fag ends plural ), fag-end
1 n-count A fag end is the last part of a cigarette, which people throw away when they have smoked the rest.
(BRIT)
INFORMAL
(=butt)
2 n-count If you refer to the fag end of something, you mean the last part of it, especially when you consider this part boring or unimportant.
INFORMAL usu sing, N of n
He never had much confidence in his judgement at the fag-end of the working day.