its basically a period, and if your a complete dumbass and dont know what a period is your probally a little boy who still thinks women have cooties, so its when blood comes out a women's pussy
menstruation - period
wendy: sorry stanley, im menstruating i cant go
stan: whats a menstruating?
wendy: a period
MENSTRUATION PROBATION IS THE PERIOD OF TIME A MAN OR WOMAN IS SENTENCED TO SUFFER FROM LACK OF FORNICATION WHEN IN A RELATIONSHIP AND THE FEMALE IS ON HER PERIOD
brittney began her period and was sentenced to MENSTRUATION PROBATION causing her to be celibate all spring bring