[muzani]

Code that does not look like what it's meant to do. The idea is that one business change means one code change. Everything else revolves around this. It's the awkwardly named things. It's the vagueness that you can't write tests for.

A subset of this is that the code should look like the language was written for it. Unsuitable use of design patterns is probably the biggest violation. And often you need to put a lot of thought into understanding both the language and the business domain.