period (menstrual), n.All

A Period (menstrual) is being sad and horny at the same time

A Period (menstrual) is a woman's body throwing a temper tantrum at you because you didn't get pregnant that month.

A Period (menstrual) is feeling fat and ugly while crying and eating chocolate in bed for a week.

A Period (menstrual) is a week long case of blue balls

A Period (menstrual) is a monthly pregnancy test.

A Period (menstrual) is a monthly punishment for not getting pregnant

A Period (menstrual) is a piece of technology that you can make synchronize with other girls.

A Period (menstrual) is a murder of the uterus