Origin from a Chinese slang "Gao Shuai Fu" which just pronounce like "Gay Shy Fool".And "Gao Shuai Fu" means tall, handsome and rich. Usually Chinese use this phrase on the Internet between friends and sometimes to describe some guys have rich parents.
Playing The fool is when you think you are special and adored to the point of creating a life with someone only to realize, sometimesover and over, that it's not possible.
Its an insult my friend Mouna used on my classmate Nahim for talking to her about stuff she didn't want to hear. And I'm gonna use it from now on its legendarylmao.