1 definition by xoamrc

Red Ninja

another name for a girl's period. This is because your periods can sneak up on you out of nowhere like a ninja. The red's because of the girl's period.

Girl 1: ugh! The red ninja caught me today!
Girl 2: Was his name (t.o.m.)?
Girl 3: yup

by xoamrc November 2, 2009