Top Definition
1. Alias or fake name used to disguise a person's real identity.

2. A word or phrase appearing within a larger text that does not make sense or has no discernible meaning.
1. That trash talking blogger won't reveal anything about himself except his ninja codon.

2. His email was so full of ninja codons that is was little more than gibberish.
by Loadmaster March 11, 2011

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