Is a website that copies codes or features from other website and join them into one big mess of a website with many features that people don't want to use.
Facebook has become a Frankenstein website in an attempt to keep themselves afloat and take on their competitors.
A website created from codes or features belonging to different websites, it is usually done by a website trying to stay competitive but lacks enough innovation and creativity to create own ideas or code.
Facebook has become a Frankenstein website.