Chinese Champs-Élysées, named Xiangxie Road. Image by MNXANL, via Wikipedia. Licença CC BY-SA 4.0
CopyCat is the act of emulating something that’s already been created and using it in a different context. Copycats can exist in music, in the arts, in design; but they are not exactly a design inspiration or a style reference, but rather a literal copy with almost no modification of the original work.
In architecture, it is as if you were inspired by an emblematic work from another space-time and placed it in a place unconnected with the original roots of the work-style.