: This is the Release Group tag. While "FLT" historically stands for Fairlight (a legendary game cracking group), in modern file-sharing, it can occasionally be used as a shorthand or unrelated identifier for specific video encoders.
: This is the specific title abbreviation. For this studio and date, it likely stands for the series "Ultimate Lesbians On The Cam." GF191022-ULOTC-FLT.part03.rar
: This is the unique identifier for the release. In this context, "GF" often refers to Girlfriends Films (a major adult film studio), and "191022" represents the release date ( October 22, 2019 ). : This is the Release Group tag