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1.
an individual who is highly amused by anything associated with flatuation.
LuAnn was such a fart enthusiast that, upon the mention of a fart, she doubles over with laughter.
by UliDarling November 26, 2010
 
2.
One with an inappropriate and/or perverse affinity for humor related to the passing of gas.

See also: dad
He is such a fart enthusiast that even the juicy splatter of a ketchup bottle makes him burst into uncontrolled laughter.
by KingofSpainGG December 14, 2010