Sideload is a term used in internet culture, similar to "upload" and "download". It is the process of moving data between two web servers.
For example, moving a music file from John's web server directly to Jane's web server is considered sideloading.
While this process is technically downloading from one server onto another, the term sideload was created to avoid confusion related to the popular notion of download referring to a file coming from the internet onto someone's personal computer.
