An abbreviation for "direct message," a form of private communication on social media sites or Internet forums. It is most commonly used as a verb. I'll DM you the address. DM me if you have any questions. Send me a DM so it's not public.

A request to send one a direct message, a form of private communication on social media sites or Internet forums. DM me if you have any questions.

slang To successfully flirt with someone via direct message (DM) on social media. If you're trying to slide into your crush's DMs, don't use a cheesy pick-up line. A: "I just slid into the DMs and asked her out on a date." B: "Wow, I can't believe that actually worked!"