"PK" stands for "Player Kill" or "Player versus Player" in Bigo Live. It is a term used in the context of live streaming battles where two or more broadcasters compete against each other in real-time. During a PK battle, viewers can vote for their favorite broadcaster, and the winner is determined by the number of votes they receive.
PK battles are a popular feature in Bigo Live as they allow broadcasters to showcase their talents and engage with their viewers in a competitive and interactive way. They can also help broadcasters attract more followers and increase their popularity on the platform.