Read on for the casual phrases that suggest a person is mentally & emotionally unhinged. AdvertisementMentally and emotionally unhinged people usually say things casually:1. 'I just can't'"Using the phrase 'I can't' while laughing uncontrollably is definitely unhinged. It's the equivalent of me laughing and saying 'applesauce,' which makes just as much sense as 'I can't' (none). I've dated two people who used the phrase 'la-di-da' from the movie, and it absolutely drives me crazy because it's such an unhinged thing to say."