In the context of social media, DM stands for "direct message". It is a private mode of communication between social media users, where only the sender and recipient(s) can see the message. DMs are available on various social media platforms like Twitter, Instagram, Facebook, and TikTok. Users can exchange text, images, videos, and other multimedia content through the chat interface. DMs are usually considered more private than public posts and are typically used for personal or sensitive conversations.