an insulting term for an asain person, the insult is equivalent to calling a black person a nigger.
(mongo was derived from the term mongoloid, which is one of the 3 types of human beings)
A sports fan who thinks he's smart but is really an idiot who spouts nonsense
Johnny wrote on Twitter that he thinks the Cavs should trade LeBron James to Portland for Chris Kaman and Robin Lopez. He is such a mongo idiot who doesn't know what he's talking about.