A list celebrity
A Z-lister is a desperate nobody who thinks they're a celebrity. They’ll do anything to get noticed, like shouting their name in third person or screaming at paparazzi like they’re in a horror movie.
In public: ‘This is the famous Z-lister, and you are not!’
Tweet: ‘I’m here, and I’m famous, and you’re not!’
To paparazzi: ‘I’m famous, and I’m here, and I’m screaming at you!’