FOMO in general stands for Fear Of Missing Out. To put it in perspective, it is that feeling you get when you sit at home by choosing not to go to the party but just can’t stop thinking about what fun you have been missing out on.
According to Wikipedia about FOMO, “Fear of missing out (FOMO) is the feeling of apprehension that one is either not in the know or missing out on information, events, experiences, or life decisions that could make one’s life better.”
FOMO has always been in existence. It is one of the key elements which keeps the human race going. What’s better is, FOMO is not just limited to homo sapiens. Animals experience FOMO too. You might have heard the famous phrase of “curiosity killed the cat”. This is a form of FOMO getting it into trouble.