A form of pseudo-religion formulated by secular moralists as an alternative to Christianity. Indoctrinating the youth with this fad ensures a docile population that will reach maturity never knowing that what they regard as 'rebellious' or 'against the grain' is simply another method of control devised by their bourgeois masters.
Flip that 'x' you've drawn on your hand upside-down. Resembles a crucifix, does it not?
'sxe' is the atheistic alternative to Christian slavery.