The Fly is when a person is sucking your dick and then they throw up on it and continue to suck it.
The Fly's vomit on there food to help predigest it. Some women "crack whores" will do anything for a buck or two.
by Chakku Norisu December 25, 2009
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to run the fingers under your nose after fingering a girl to help make the crucial decision before going down on a girl.
my mate ste said she was a slut so i did a fly by to make sure it was fresh not fish.
by idleian November 26, 2007
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Not cool. What you say when your warning someone not to do something stupid.
Dont mess with my homegirl because that dont fly with me.

Dont do that, it aint fly.
by Rhissa July 21, 2007
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Chris loved flying so much he decided to take some lessons and learn how to do it himself.
by A. R. G. 5000 August 5, 2006
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When a man is getting a massage and the masseuse brushes up against a mans balls while working the inner thigh. AZ
That massaged sucked, it didn't even get a fly by.
by Antdogg1978 June 9, 2009
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