Adj. A combination of Monga and Retard combined. Essentially a person of a lower life form who is so inept at things in general that they have an IQ lower than a Meadow Muffin.
Einstein is so incapable of doing anything correctly, that I now give him the title of Mongatard!!
That person is so stupid, he should be called a Mongatard!!
Mike likes it when I call Einstein a Mongatard!