from "Seinfeld", the "Moops" were the nation that conquered Spain & gave it the twinge of Islamic architecture seen to this day, according to the card George was reading from when playing Trivial Pursuit against the "Bubble Boy". Bubble Boy insisted, quite rightly, of course, that the answer was "Moors", but George being the prick that he was, wouldn't give him credit for the answer. The townspeople later drove out the fiendish George & Jerry for their mistreatment of the Bubble Boy.
Bubble Boy: It was the Moors! The MOORS!
George: No, I'm sorry, it was the Moops. The card clearly says, "Moops".