Definition & Meaning of "terminally online"in English

What does "terminally online" mean in internet slang?

It is used to describe a person who spends so much time on the internet that they lose touch with offline reality, often adopting niche memes, extreme opinions, or social norms that make no sense outside digital spaces. People typically use the term as mild criticism or self deprecating humor when someone overreacts to online drama, uses deep cut references in real life conversations, or treats internet arguments as life or death.