The phrase describes the action of saving video content from the YouTube platform to a local device. This enables offline access to that video, circumventing the need for an active internet connection during playback. For example, a user might engage in this activity to watch a tutorial while commuting on a train without consuming mobile data.
This process offers several advantages, including data conservation, accessibility in areas with limited connectivity, and long-term preservation of content. Historically, various third-party software and websites have emerged to facilitate this functionality, addressing a user need not directly provided by the platform itself for all content.