This denotes the resolution (1280 x 720 pixels). While 1080p and 4K are standard today, 720p was the "sweet spot" for years, offering High Definition quality without massive file sizes.
The concluding words, "hot portable," are marketing terms used by uploaders to attract downloads. zootopia 2016 720p bluray x265 hevc shaanig hot portable
Perhaps the most intriguing part of the keyword is "Shaanig." This was the name of a highly popular torrent release group. In the world of online piracy, certain groups gain a cult following for their consistent and reliable output. This denotes the resolution (1280 x 720 pixels)