1. (n) an extremely retarded person.
2. anyone who uses the word "Joe" to refer to other people, whether they are named Joe or not.
3. anyone from Quincy, IL.
"Hey Joe, what you fin to do to today"
"My name isn't Joe, and quit talking like that, you sound like a joetard."
"Hey fam, Gucci went hard on that new track, Joe"
"Listen to that guy, what a Joetard"