Used to describe when someone or something is less than average.

That taco place that's trending on TikTok is mid.
History and usage

The use of the word "mid" in pop culture has gained prominence as a slang term to express disappointment or mediocrity. The term originated from the gaming community, particularly in the context of rating or evaluating something. When someone refers to something as "mid," they are suggesting that it is mediocre or average.

The popularity of "mid" expanded beyond the gaming sphere and found its way into broader pop culture, including social media platforms like Twitter and TikTok. It became a concise and trendy way for people to express their dissatisfaction with various things, such as music, movies, fashion, or any other cultural phenomenon.

The term's simplicity and versatility contributed to its widespread adoption.