a 'made-up' [='fictitious'] story/name
She was nicely 'made-up'.
(..) What is he, your ward? No. - I'm Peter, by the way. - Doctor Strange. Oh, you're using our made-up names. Um... I'm Spider-Man, then. This ship is self-correcting its course. Thing's on autopilot. Can we control it? (..)2018 Avengers: Infinity War
(..) You're welcome. Then we have to go to Knowhere now. Wrong. Where we have to go is Nidavellir. - That's a made-up word. - All words are made up. Nidavellir is real? Seriously? That place is a legend. They make the most powerful, horrific weapons (..)2018 Avengers: Infinity War