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.
Student 1: "Yes it does..." (and proceeds to answer question).
Student 2: "What a Moamen Bastard!"