To slide into the DMs is online slang for sending someone a direct message on social media slickly and coolly, often for romantic purposes.

What DMS mean slang?

DM is an acronym for a private "direct message" sent online. ... The "DM" terminology as it's used now can refer to private messages on any number of social media services that host messaging, including Instagram, Discord, and Twitch.

What does DMS mean on social media?

A direct message — DM — is a one-on-one conversation with another user hosted on a social media platform. Most of the places you spend your time online — like Facebook, Twitter, Instagram, Snapchat, LinkedIn and so on — offer some form of DM communication.