Thanks to Photoshop and zBrush, photobashing and specifically kitbashing became the natural part of creative process. But what if we go beyond using functional components in a new and unusual way and dive deeper into the design process.
So here is the question. What makes Lamborghini or Apple products look like they do? Why we instantly recognize what kind of brand we are looking at? Well, it is because of the form language they use.
What is form language? 
Simply said, it is a specific and unique combination of forms and shapes. It is the well defined contrast between soft and hard forms, proportions or structure that makes your design unique. Just google it.
Now, as far as we finally understand,  let's distill the essence of particular form language into simple building blocks. Let's design a DNA of our form language. Once we are done, we can use those DNA blocks to build much more complex objects, while maintaining the consistent style.

Finally, what is Formbashing?

Formbashing is a creative design approach which uses simplified forms to build complex objects such as products, vehicles or architecture. These basic building blocks represent the abstract form of required aesthetic, cultural or technical reference such as elegance or harmony.

See more examples at Behance: