Definitions by FIFA Overlord

Period Frenzy 

When a woman gets her period twice in the same month.

Woman: Oh my gosh! I just got my period for the second time this month!
Other Woman: Wow! You are having a period frenzy!!

Period Frenzy by FIFA Overlord February 2, 2017

Period Mania 

The scientifically proven phenomenon where women, who live and spend time together frequently, develop similar menstrual cycles as each other. The cause is yet to be determined.

Those girls are so close, I hear they have period mania.

Period Mania by FIFA Overlord March 10, 2016