The expression almost always refers to women, as men are thought to always be in this state.
"Alright Ladies, this dirty thirty is on the house!"
Leo: No, I can't drink, there are exams this week.
Jimmy: No, I mean the dirty thirty from Nafer.
Type your email address below to get our free Urban Word of the Day every morning!
Emails are sent from firstname.lastname@example.org. We'll never spam you.