lady's day
A fancy way for a woman (or a man pretending to be one) to tell a man that they’re bleeding out of their pants and it’s not pretty.
Hey bro, it’s lady’s day, so you’re on your own today.
I’m not coming to the pub, it’s lady’s day and I’m not getting puked on.
He said, ‘It’s lady’s day, and I’m not getting poked by a sock.’