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it is a word meaning happyness, enjoyment etc, derriving from the dyslexic, "fun"
"dyslexics get all the fnu!"
by ding dong November 01, 2003
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Nut quite fun, but as much fun as any person of Germanic descent could ever hope to achieve in a lifetime.
Dieter had fnu driving his new Mercedes on the Autobahn.
by The Harlot March 04, 2004
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