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2.
The startled feeling you have when you realize, too late, something you should/could have done differently, and usually blurt out,"Aw, shit, I could have {insert missed action here}";often occurs while gaming.
We were playing Munchkin last night and I had a shitpiphany when I remembered, too late, that as a Ranger I could have made the cyclops into a steed instead of fighting it.
by theMotherDog October 14, 2010
 
1.
When one has an epiphany while sitting on the toilet. Usually while defecating.
Dan, while sitting on the toilet, had a shitpiphany and decided not to marry that chick.
by frail_otis November 04, 2009