1. n. The 'Art' of opening the Soul of an individual outside of their own immediate and physical vicinity in such a way that often arouses the physical body, but especially challenges their very 'nature' and 'Being', mentally, first and foremost.
2. v.--A 'Method' or process used to literally 'ignite' the essence or 'spiritual body' of 'either' party with a 'fire' or 'ethearic charge'(i.e. supernatural) that 'burns long'(i.e. an 'inescapable effect'), emotionally deep...and often without the 'collective' conscious awareness of 'both' parties, at first...yet, 'Always' through the 'mutual' consent of each party involved.
3. n. adv.--The 'Flame' or Energy harnessed is highly progressive, pervasive, and utterly so seductive that it matures to the 'Volcanic' experience of A Supremely Resonating and Orgasmic Energy that renders the body so numb, that the 'Soul' has no choice but to Re-Cognize it'Self' for the first time since birth, in its purest 'essence', experientially, as 'One', with all that is and ever will Be.
i.e. A Theistic interpretation
4. Modifier--The ill use of, and or side effects of 'Ninja Sex' can be apocalyptic and or cataclysmic; overall, the 'experience' is based on the individuals involved and their corresponding soul paths.
5. Idiom--to have sex, to engage in the 'Act' and or ~Art~ of 'Inter-Course'( i.e. a path by which two individuals 'cross' or ~interconnect~, 'physically' and ~spiritually~. )