A deceased man's penis, erect by way of Rigor Mortis.
A male corpse's fully extended genital member.
Sometimes used with other terms such as: "Mother fucking corpdick" which would refer to the necrophiliacsexual intercourse between a mother and the aforementioned recently deceased man.
It is occasionally alternatively spelled as "Corpdic"
Bill: You are such a corpdick!
Ted: Wtf does that even mean?
Bill: You're a dead man's hardened cock, idiot.
Greg: That dude doesn't even seem to breathe when he sleeps. This one time his girlfriend thought he was dead, but she was confused since he had a raging boner.
Phil: So she thought he had corpdick?
Greg: Yeah, pretty much.
a stupid ass who does stupid things. this term is good to use when observing morons driving, when you have been cut off in traffic, or when observing any other stupid idiotic act by any male.