A pain in the bitch
a pain in the bitch is something so annoying it makes you want to scream, throw things, and maybe even punch a wall.
My brother is a pain in the bitch. He eats my lunch every single day.
My dad is a pain in the bitch. He plays his loud music when I'm trying to sleep.
My friend is a pain in the bitch. She keeps changing the plans for our hangout.