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1.
something not only fattening but gives you gas as well.
Dude-- eating too much spaghetti can be fartening....
by rustyn January 04, 2008
 
2.
something that makes you fart, as opposed to "fattening" being something that makes you fat.
don't eat beans before a date, because they are fartening.
by charlesthedick April 06, 2009