What is the definition of Cleaner Project?

A 'cleaner project' is like a superhero's sidekick, but instead of wielding a cape, it wields a broom and a squeegee. It's the kind of job that requires superhuman attention to detail, because you can't just leave dirt on a project – it's a dirty business.

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Here's a chillingly creative example sentence: "The cleaner project to erase all the 'ugly' flaws from our city's subway system was more like a haunted house cleaning competition than anything else, complete with ghostly ghost trains and a ghostly janitor."