-filmyhunk.net- 21mu.tiffin.480p.sm.web-dl.aac2... -

: This usually stands for "Sub-Marathi" or "Subtitle Master," indicating that the file may have hardcoded or included subtitles.

The long string of text in your keyword is a standard naming convention used by online release groups. Here is what each part represents: -FilmyHunk.Net- 21mu.Tiffin.480p.SM.WEB-DL.AAC2...

: This identifies the source of the video. A WEB-DL (Web Download) is a file losslessly ripped from a streaming service like Netflix, Amazon Prime, or Zee5. It is generally higher quality than a "WEBRip" because it hasn't been re-encoded from the stream. : This usually stands for "Sub-Marathi" or "Subtitle

: This is the "tag" or watermark for the website or group that uploaded or re-encoded the file. -FilmyHunk.Net- 21mu.Tiffin.480p.SM.WEB-DL.AAC2...