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1.
A nonsense language that's used when you want to insult someone in another language but you sadly don't know one, so you decide to be cool and make one up.
Boy1: Hey fatso, how many cookies do you have for breakfast?

Boy2: *glares angrily* HAFLAAGANO GEER COPA VIVIK BOGHAFEL GER FLOOSA!

Boy1: *turns to friends* Dude, is he speaking Harlagaon?
by The Insanity Plea March 30, 2010