fag

homosexual man, short for faggot

1. cigarette (probably from "fag-end" - "last part"); 2. smoke a cigarette; 3. male homosexual (shortening of "faggot")

have a cigarette

(derogatory) woman who socialises with male homosexuals

completely exhausted

sometimes used in it's American sense i.e.. short for 'faggot' or homosexual, but more commonly for a cigarette.