Dadum
A dadum is someone who used to be the butt of every joke, but now they're so hot they make your brain explode. They went from being a joke to being the main event.
That girl who used to sit alone at lunch is now my crush. She’s a dadum!
My old bully is now a dadum and I’m jealous.
My ex was a dadum. Now she’s my ex and my dream girl.