Vid-20151207-wa0073

: The date the video was saved or sent (December 7, 2015). WA : Indicates the file originated from WhatsApp.

This name follows the standard format used by for video files: VID : Short for Video. VID-20151207-WA0073

Are you trying to this specific video from an old backup, or were you looking for a description of a viral video that might have been circulating under that name? : The date the video was saved or sent (December 7, 2015)

: A unique serial number assigned to that specific file on that day. Are you trying to this specific video from

Because these files are private and stored locally on your device or in your personal cloud backups, I don't have access to the actual video content. It could be anything from a family holiday greeting to a funny clip shared in a group chat back in 2015.