Define cosplay in easy language. Cosplay is all about dressing up and pretending to be a particular character from a movie. It has a huge sensation amongst fans of nerd subculture around the world. People diligently design outfits and accessories that accurately reflect their favorite characters. Costume players usually participate in events or costume play events, where they can showcase their creativity and network with others who share the same passion. Ultimately, cosplay is an expression of admiration and commitment for a fictional character and the love for the geek community.