i-adjective (yoi/ii class)
Slangy, emphatic variant of かっこいい. Used in casual speech to describe someone or something as very cool, attractive, or stylish.
See also: かっこいい
そのジャケット、かっちょいいね!
That jacket is really cool!
彼の新しい車、カッチョイイ
His new car is so stylish.