Derived from "Moan" and Man"
A nickname for delinquent, lackadaisical fools, who's constant vainglorious grandiloquence can often be vexatious to others.
Moamen believe their opinions are indubitable, and their skills incomparable. They possess the only plausible answer to every conceivable question.
Professor: (asks question) "Class, this question is theoretical and has no right or wrong answer..."
Student 1: "Yes it does..." (and proceeds to answer question).
Student 2: "What a Moamen Bastard!"