mid

At its core, "mid" is short for "middle" or "mediocre." It describes something that is average, unremarkable, or fails to meet the expected level of quality. Imagine a bell curve where the vast majority of things sit in the middle; calling something "mid" is a way of saying it lacks the "wow" factor or the distinct character needed to be considered good or impressive. In usage, it is almost exclusively derogatory, though often in a lighthearted or dismissive way. It is frequently used in internet culture to critique media, food, or performances. You would typically use it when you feel disappointed by something that was hyped up but ultimately felt entirely generic.
In conversation
Discussing a new movie
So, what did you think of the new superhero flick?
So, what did you think of the new superhero flick?
Honestly? It was pretty mid. The CGI was fine, but the plot was a total snooze.
Honestly? It was pretty mid. The CGI was fine, but the plot was a total snooze.
Used here to express that the movie was underwhelming.
Ordering food
How’s that burger place you tried?
How’s that burger place you tried?
It’s okay, but definitely mid. Nothing beats the spot downtown.
It’s okay, but definitely mid. Nothing beats the spot downtown.
Used to describe food that is edible but not worth returning for.
Examples
The concert was mid.
The concert was mid.
I thought the ending of the series was a bit mid compared to the first season.
I thought the ending of the series was a bit mid compared to the first season.
Don't settle for a mid experience when you deserve something truly exceptional.
Don't settle for a mid experience when you deserve something truly exceptional.