笑星 is a colloquial term for a 'comedy star' or 'funny celebrity' — a performer famous for making people laugh, such as a crosstalk (相声) comedian, sketch actor, or stand-up comic. It's a compound of 笑 (laugh) and 星 (star), and is commonly used in entertainment media and fan discussions. Unlike 喜剧演员 (comedy actor), 笑星 emphasizes the star status and popularity rather than the profession itself.