An acronym for “fear of missing out.” It’s a fear of missing big rewards despite investing in a project or a cryptocurrency. A FOMO might happen when a coin or NFT rises significantly within a short period, and you’ve not shared in the profit.
This warning tweet by @TheMoonCarl is a good usage example of FOMO:
“Many people will panic and sell their #Bitcoin only to FOMO back in at higher prices. Don’t be like them.”