A sexual orientation where the individual finds himself or herself sexually exciting. Narcissexuals are commonly autosexual, however they may engage in interpersonal relationships in which their partners play only a supporting role to the narcissexual's infatuation with himself or herself. Egocentrism and selfishness, especially in intimate settings, are major social indicators of narcissexuality. Derived from the Greek myth of Narcissus.
A narcissist is an extremely conceited person, and and a person that is septic is full of toxic waste. A "narcisseptic" is a person that is completely into themselves, thinks of no one but themselves and they are completely full of shit.