do whatever you want that your parents don't like
e.g. drink coffee, wear clothes they don't like, buy something you've been wanting to for ages
Me: Karen, it's fuck with your parents day, what are you going to do?
Karen: not talk with the manager >:c
by arakana January 12, 2021
mugGet the fuck with your parents daymug.
This day falls on January 1st.

Start your year off with proving who's the boss.
Craig: hey man it's national piss on your parents lawn day
John: fuck yea time to show em who's boss
by Bigggggfugggerrr October 15, 2020
mugGet the National piss on your parents lawn daymug.