also: コスプレショウ
cosplay show
An event or performance where participants dress up as characters from anime, manga, games, etc. Often a stage show or competition.
See also: コスプレ
I'm going to see a cosplay show this Sunday.
She won the cosplay show.
Variant with interpunct; less common but still seen.
Wasei-eigo from English 'cosplay' (costume + play) and 'show'.