What does "dry" mean in slang?

In modern slang, especially among Gen Z and Millennial speakers, dry has several related meanings that all describe something boring, uninteresting, emotionless, or lacking excitement. The most common use is to describe a conversation, text message, or person as dry, meaning they give short, low-effort, unenthusiastic replies like k, lol, yeah, or ok that kill the conversation and show little interest. A dry texter is someone who does not ask questions or add energy. It can also describe humor as dry humor, which means deadpan, sarcastic, or subtle humor delivered without obvious emotion, though in slang it is often used negatively to mean humor that is not funny or too serious. In social contexts, a dry party, dry event, or dry phone means boring, with no notifications, no fun, no excitement. It can describe appearance as dry, meaning plain, lacking style or sauce, as in that outfit is dry. In some contexts, dry can also mean sober, as in a dry party with no alcohol. In dating slang, being dry means being uninterested or distant after showing interest before. In comedy, a dry delivery is intentional and can be positive, but when Gen Z says someone is dry, they usually mean the person is dull, unfunny, and not engaging, and they want more energy, humor, or personality in the interaction.