Snapchat
Definition
A multimedia instant messaging app and service used primarily for sharing pictures and videos (Snaps) that are intended to be ephemeral, typically disappearing shortly after being viewed.
A social media platform characterized by its camera-first interface, augmented reality filters (Lenses), and the ability to track user locations via its integrated Snap Map.
Examples
I sent a Snap that disappeared in seconds, which is honestly the only way my questionable life choices should ever be documented.
Most people use Snapchat to keep in touch with friends, though some seem to treat it like a digital vault for their most regrettable late-night decisions.
The Map feature is great for seeing where your friends are, provided you don't mind the slight existential dread that comes from realizing everyone else is out having fun while you are just refreshing your feed.