For the full 24 hours of your birthday, you don't have to do any chores around the house or homework. You can also say and do whatever you want without getting into any trouble, as stated by the definition above.
Since today is my birthday, I'm not doing any of my homework and my family has to do my chores for me because I have Birthday Immunity.
Ruler of Lake Titicaca. Rumored to have a bunghole that gets very angry if it does not receive toilet paper. Cornholio the Great is often seen walking around with his shirt over his head and his hands in the air, chanting songs about his power, and his bunghole.
"I am Cornholio! You do not want to face the wrath of my bunghole, for I need TP!"
Butthead: Shut up, Beavis! (uh huh huh huh)
Beavis: Um, okay. (heh heh heh heh).