hair up your ass
When you get an idea so dumb it makes your brain feel like it’s about to explode and you just have to tell someone, even if they’re not listening.
My hair up my ass idea was to run around the block wearing my underwear and a hat made of noodles.
I had a hair up my ass idea to text my mom and say I’m a ghost.
My hair up my ass idea was to eat a whole cake for breakfast and then take a nap.