A “Fly Girl” dancer usually refers to the group of hip-hop/jazz-funk dancers featured on the 1990s TV sketch show “In Living Color.” They performed high- energy routines going into and coming out of commercial breaks, helping define the show’s cool, urban, early-’90s vibe and influencing music video and hip- hop dance styles of that era.

More generally, “fly girl” in hip-hop slang describes a stylish, confident woman who is fashion-forward, socially savvy, and often associated with dancing and club culture. So a “Fly Girl dancer” is both a specific reference to that iconic troupe and a broader idea of a confident, trendy female dancer with strong hip-hop or street-dance roots.