used as one word, the result of having anal intercourse and being left with fecies on the penis. Can be used as an insult for someone who landed themself in a bad situation, as an exclamation, or as a noun describing a bad situation.
Damn, that's shitdick man.
Yo, that girl gave you shitdick?
wow, you're such a shitdick.
Shitdick! i hate it when that happens.