Top Definition
Any time of the day when any member of a group needs a cigarette break and all others must join him or her in the smoking area.
LJ - Dude, what time is it?
Sam - Fag o'clock?
LJ - Confirmed yes yes, see you at the smoking hut.
by Laura-Jayne September 07, 2008
5 Words related to fag o'clock

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