Quiet firing is a thing.. who knew about Goblin mode?  Apparently meaning unapologetically self-indulgent, lazy, slovenly, or greedy behaviour, typically in a way that rejects social norms or expectations.  Another type of behaviour that we do not want to become acceptable in the work place. I am not sure giving this behaviour its own slang term is particularly helpful, but perhaps this is what happens when you allow the public to choose the word of the year...