Random Asian Girl.

All the conventional definitions, plus a case where a mechanical device is malfunctioning for a 5 to 7 day period. See OTR and beating off

to be on your period

n. The practice of tormenting freshmen at school. An initiation process involving harassment. syn: hazing

For a female to have her period.

A term used to describe a woman's period.

whereas the "rag" originally referred to the maxi pad used when a woman is on her period, "on the rag" is now used generally to mean having/being on your period, whether or not one uses a maxi pad.