Reverse Period
When you throw up blood into a girls pussy, often during sexual acts.
Guy 1: I did a reverse period into my girl last night
Guy 2: Are you ok?
Guy 1: I'm currently at the hospital
Guy 2: Are you ok?
Guy 1: I'm currently at the hospital
Reverse Period
When you get a bloody nose while eating a girl out.
I was munching this girl’s box and just ended up giving her a reverse period