What does FJ mean?
Other definitions of FJ:
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How to use the term FJ:
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For Official Use Only
Most usages of "OTN" on the Internet these days are of Japanese origin and refer by sound-alike to the Japanese slang terms "ochin" (child's testicles) and (especially) "ochinchin" (child's penis). The term is especialy used in the phrase "gigantic OTN" meaning that a boy has a very large penis for a person of his age. As of mid-2015, the term OTN is popular primarily because of the song "Gigantic OTN" (look it up on YouTube).
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