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1.
A chaffed/inflamed anus, normally due to walking too much in a moist environment. Called a spicy donut because in order to cure it you must either glaze or powder it.
Guy 1: Dude I worked a double today and totally have a spicy donut
Guy 2: Put some neosporin or gold bond on that nasty shit yo.
by Narfle March 11, 2011