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1.
When sevral girls are attracted to one man without him trying, and he is totaly clueless to it and does not want their love. Derived from the show "Tenchi Muyo!" in which the main character (Tenchi) has many girls chasing after him and vying for his love.
"Man, Cathy and Taylor both asked my out today, i've got mad Tenchi syndrom"
by Suzakku January 15, 2005