Cosplay definition of cosplay by The Free DictionaryIllustrate costume play heart in easy language. Costume play involves dressing up and pretending to be a particular character from an anime. This trend has a massive trend among enthusiasts of nerd subculture globally. People meticulously create outfits and accessories that accurately reflect their favorite characters. Cosplayers commonly participate in events or costume play events, where they can showcase their artistry and meet others who share the same passion. In the end, cosplay is an manifestation of admiration and commitment for a fictional character and a love for the nerd community.