Chinese subculture of young urban migrants, usually of low education, with exaggerated hairstyles, heavy make-up, flamboyant costumes, piercings etc (loanword from "smart")
Definitions (Wiktionary)
noun, neologism
the subculture comprising such people
noun, derogatory, neologism, sometimes
someone, typically a rural migrant to the city in his or her late teens or early twenties, who adopts an extravagant and colourful hairstyle, odd makeup, and cheap clothing bought from street markets to show off their fashionability; rural punk or goth