Packratitis
A never-ending mental mess where someone goes from liking something to being a total lunatic about it. They’re like OCD but with more clutter and less sense.
My mom has packratitis. She turned her garage into a museum of old socks and broken toasters.
My brother has packratitis. He keeps every receipt from 2003.
My neighbor has packratitis. He thinks he’s a wizard because he has 27 boxes of old pizza coupons.