It's a very big shit but with dicks in it. The reason for dicks in it is because of cannibals and the diet of only dicks.

when u had jimmy johns earlier in the day, then get fucked in the ass.

Defined by the lovely "ally"

A noun used towards a male friend who has gotten human stools on his glands penis due to engaging in anal sex.

when you get mad at a person you can refer to them as a shitdick

Having fecal matter on your weiner

Shitdick can mean Dickshit and also mean someone that is a retard. Incapable of having any laughs and has a dick up their ass.