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A loud fart in public that comes at a time when all recent previous farts have been silent, thereby betraying you much like Benedict Arnold betrayed the colonies during the Revolutionary War.
Chris: Dude, come on. You farted in the middle of the train while we were at that stop! Not cool, man.

Tom: Sorry bro, all my other farts today have been silent, so I thought the coast was clear to let it rip. A real Benedict Fartold.
by Toothpick McGee January 14, 2014