Repeated phrases

On my current rewatch I realized that Izzie is constantly saying "I don't know what to do. Tell me what to do. What do I do?" And it made me think about how many phrases get repeated on this show, some more often by everyone ("that's on you!", "why are you telling me this?" and in early seasons patients constantly saying "you're a hotshot doctor" lol), and some by specific people ("seriously"). I'd love to know your favs and least favs! Not in terms of the medical jargon, but just phrases that seem to be said constantly on the show conversationally!