I once inherited a codebase that did this, and it was a nightmare to learn. All the classes were named after types of alcohol for some reason.
Naming things clearly is really hard, but this approach is just giving up completely.
Assuming good documentation, it just means a few extra minutes learning what some terms mean, and that's worth it in the long run in my experience.
Is there a way to describe an example of such a class? That sounds like it could have a proper descriptive name, it'd just be a bit harder to come up with.