"Mid" is a slang term that is commonly used on social media platforms like Twitter, Instagram, and TikTok. It is typically used as a prefix to describe something that is average or mediocre. The term can be used humorously or sarcastically to express disappointment or underwhelming feelings about something. For example, if someone says "That movie was mid", they are saying that the movie was just okay and didnt exceed their expectations. Similarly, if someone says "My day was mid", they are saying that their day was neither good nor bad, just average. The term can also be used as an insult or to oppose the opinion of another. In general, "mid" is used to describe something that is just okay or mid-tier and is not used for things that are truly bad or awful.