So FOMO means the 'fear of missing out' (FYI those who have no idea 'Hi Dad') with the online dictionary informing me it's, 'Anxiety that an exciting or interesting event may currently be happening elsewhere, often aroused by posts seen on a social media website' (please tell me you also laughed out loud at 'aroused' and the use of 'website' after social media-yes I might need to grow up #natch).