The phrase denotes a specific category of software or online service designed to acquire video content from the Chinese iteration of a popular short-form video platform. These tools allow users to save copies of publicly available videos for offline viewing, archival purposes, or other personal uses.
The utility of such services stems from several factors. Users may seek to preserve content that might be removed from the platform, create personal collections of favored videos, or repurpose the video material for non-commercial projects. These services also bypass the need for a constant internet connection to view the desired videos.