(N)'Tokyo Roller Coaster' is the
name for the process of defecating into someones japseye. It is mainly performed as a sexual act, celebrating the
art of sodomy by the unorthodox reversal of each orifice's role.
However, the japseye may also function as a temporary
waste repository, if it is sufficiently cavernous.
The
name is derived from the reference to Japan in the term 'Japseye', and roller coaster is a reference to the rapid decent of undeposited feces towards the ground.