Let me check each part. Starting with "FG" could stand for Fine Grain, Feature Group, or maybe something else. "Selective Videos" might relate to choosing specific video content. "Lossy" in tech terms usually refers to lossy compression, which sacrifices some data for smaller file sizes. "Bin" could be a directory or a binary file. Putting it all together, maybe it's about video files stored in a lossy compressed format in a specific directory. The "hot" part might indicate they're popular or have high usage.