Gallows bait
Someone who is so annoying you’d kill them just to get a free ticket to the electric chair.
My neighbor is gallows bait. He plays his guitar at 3 a. m. every day.
My little brother is gallows bait. He eats my pizza and calls me a cheesehead.
My ex is gallows bait. She texted me a selfie at 2 a. m. and called me a ghost.