1) Originally, a pejorative term for a clumsy (either physically or mentally) person
2) A more general insult, similar to saying that someone "is fail".
3) One who drops a class or out of school
4) An accredited shit dropper is one who drops out of an accredited shit dropping degree program
5) one who fails to complete things
Note: the author was a self-taught shitdropper, and has..well..dropped this shit
"Cody knocked the bowl over again, he's such a motherfuckin' shit dropper"
"Whoever wrote this exremely kludgy code is one hell of a shit dropper"
"Ben dropped English; I told you he was a shit dropper"