Plan-beriod 

That "period" you get after taking plan b. Symptoms include light bleeding, sore boobs, and cramps like the baby you don't want is punching your uterus.

"Hey Mallory! Wanna go to the club tonight?"
"No girl I can't, I've got that plan-beriod."

Plan-beriod by Ellewest44 February 18, 2015

Plan B-eriod 

The period you get a week after you take plan B.

Guy: My girl's on her period I can't smash.
Guy 2: Wasn't this the issue last week?
Guy: Oh this isn't her regular, it's her Plan B-eriod.

Plan B-eriod by SantaEatsPuppies May 29, 2018