
1) Activity at a comic con
Found on
https://www.crosswordclues.com/clue/cosplay

Favorite sources include manga, anime, comic books, video games, and films. Any entity from the real or virtual world that lends itself to dramatic interpretation may be taken up as a subject. Inanimate objects are given anthropomorphic forms and it is not unusual to see genders switched, with women playing male roles and vice versa. There is also...
Found on
http://en.wikipedia.org/wiki/Cosplay

Dressing up as anime and manga characters. Cosplay competitions held at conventions allow fans (known as 'cosplayers') dress up as their favourite characters, pose for pictures and win prizes. Hardcore fans can treat cosplay very seriously, sometimes spending months making their costumes. In Japan Cosplay Cafés
Found on
http://www.animetion.co.uk/glossary.htm

this is short for `Costume Play”; a practice of dressing up as one`s favorite anime character
Found on
http://www.bellaonline.com/articles/art9842.html

(short for 'Costume Play') The practise of dressing up as one's favourite anime or manga character. A popular event at anime conventions.
Found on
http://www.encyclo.co.uk/local/20182

short for "costume play." Cosplay is the act of dressing up as an anime character. Many fans tend to do this at big anime conventions such as Anime Expo. More info on Cosplay
Found on
http://www.encyclo.co.uk/local/21412

Short for
Found on
http://www.usaanime.us/References/Glossary.htm
No exact match found.