The name comes from the Chinese words pang xie wu, meaning crab dance, a description of the sideways steps and claw-like hand movements performed to the music. Short clips of the dance spread through short-form video apps, where the format is easy to remake with friends, classmates or pets. Because the joke is visual as well as musical, it travels well across languages without needing lyrics or explanation. The sound is still used for playful dance remakes, group challenges and edits that turn an ordinary side step into a punchline.