Se me está descongelando el bistec*

* My steak is defrosting

Spanish Mexico

Expression USED Frequently BY Almost Everyone

It's a way to indicate that someone is menstruating. You say this because when you defrost a steak (or any piece of meat) there's blood coming out of it.

"Hoy no iré a clase de natación porque se me está descongelando el bistec."

"I won't be on swimming class today because my steak is defrosting."