The phrase is a plain everyday German compliment meaning 'nice costume too', the kind of thing heard at Halloween parties, Fasching parades and cosplay conventions. Short voice clips like this travel well online because the line needs no context to land, and German-language meme sounds have a steady audience among creators who caption or repost them. Its compact length makes it a handy drop-in reaction for costume reveals and dress-up compilations, where it now gets reused as an approving punchline.