2.) An command insult implying that the subject of your verbal abuse should "shit a dick" "dick" in this case meaning a log of feces, and perhads tear thier anus in the process.
3.) When used casually shit a dick siginfies dissappointment in a given situation.
4.) Shit a dick can also be used to reference episode #1102 of South Park: "More Crap", where an enourmous turd starts a chain of events that leads to the unraveling of a massive conspiracy.
2.) "God damnit Burnice, why dont you go shit a dick and die!"
3.) "Aw shit a dick, i dropped my ice cream.. fuck"
4.) "HAAAAAAAAAAAAAAAAAOOOOOOOOOOOOOWWWWWWWWW! hot hot hot hot hot, hot hot hot hot hot, OOOOOOOOO AHHHHHHHH!!!! ahhh..."
i'm about to shit a dick if this bitch keeps talking to me.
Also could be used to insult someone by saying they are gay, implying that they, a guy, had anal sex with a dude.
Omg guy you are so gay! Go shit a dick!