Sometimes we’re happy to get it. (As in, OMG I just got my period and I’m so glad I’m not pregnant and it’s really time to upgrade my method of birth control right-effing-now.) Other times not so much. (As in, did it have to last my entire vacation?) And nowadays, thanks to birth control, we’re even able to plan for it or skip it altogether. But, no matter how you feel about menstrual cycles, there’s one thing we can all agree on: Having a period has inspired a lot of slang.