A practical joke in which the trickster places a fan, typically oscillating, near the person to be tricked. The trickster then walks by and farts into the fan thus blowing a not so fresh breeze of ass stink all over the victim.

When your mother comes over we'll have to give her a fart fan.
by Clint Warren May 26, 2007
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A dramatic windmilling arm motion intended to waft your special creation in the general direction of your friend or partner
Phil is an expert in fart fanning, his wife wants to have him declared an environmental hazard by the EPA
by Marshall Fazione November 20, 2016
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