Explain cosplay heart in layman's terms. Cosplay refers to dressing up and pretending to be a particular character from an movie. It has become a massive trend among fans of geek subculture internationally. Fans carefully craft outfits and props that accurately reflect their favorite characters. Costume players frequently participate in conventions or costume play events, where they can showcase their creativity and meet others who share the same passion. Ultimately, cosplay is an expression of admiration and dedication for the fictional character and the love for the geek community.