1. an idiotic person. 2. As the name implies, a sandwich made of SHIT.
Ryan is such a shitwich.
by Matt October 27, 2003
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for some reason you leap off the toilet while taking a shit, in which the resulting action causes the hot turd to be smooshed between your ass
dude1: NO WAY i just won $1 mil. in the lotto!

dude1 leaps up

dude1: uuuuhhhhh man i just made a shitwich.
by lake placid black guy November 1, 2009
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