1) American English; performing fellatio upon a homosexual.

2) Parts of Scotland and Northern England; smoking a cigarette.
1) Did you hear about that congressman? He was blowing a fag on the airport restroom!

2) Morag, your pint is waiting!
"Will ye gimme a minute, aye! I'm still blowing a fag ootside!"
by upyerkilt December 7, 2008
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In The U.k. Slang for smoking a cigarette
Let's go out and blow a fag.
by bigman28 December 27, 2016
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