Can I call a vacuum cleaner cleaner a vacuum cleaner?
This was written in a hallway. Can you help me dissect what's going on here, along with an appropriate response?
By dissect, I mean I'd like to identify what types of words we're dealing with here. Is "vacuum cleaner," as in the household appliance, a compound noun? If so, is the first word "vacuum" an adjective? What about the occupation of a "vacuum cleaner cleaner" - how would I classify these words? Also, does this sort of wordplay go by a specific name?