The phrase is a highly specific search string used by internet users looking to download or stream the first season of the Indian comedy web series Pop Kaun? .

: Without more context, it's hard to say what this stands for, but it could refer to a specific encoding, tagging, or formatting process.

This indicates the source is a "Web Download" directly from Hotstar (HS). Unlike a "WebRip," which records the screen, a "WebDL" is a lossless extraction of the original file, ensuring the highest quality available.