A combination of the words "moron" and "retard" used when one becomes confused by the stupid actions of another and can't remember either word individually. Also, a word used when one of the words by itself doesn't cover the level of idiocy.
Person 1: "Did you seriously just call your teacher 'mommy'?
Person 2: "Yeah...I didn't mean to."
Person 1: "You're such a moronetard!"
Person 2: "Yeah...I didn't mean to."
Person 1: "You're such a moronetard!"
by thateggfromparadise February 06, 2016