out of (one's) mind(redirected from out of their mind)
out of (one's) mind
slang Crazy. This phrase can be followed by "with" and the cause of the craziness. He's out of his mind if he thinks this plan is going to work! After yet another sleepless night, I'm starting to feel like I'm out of my mind with exhaustion.
*out of one's mindand *out of one's head; *out of one's senses
Fig. to be silly and senseless; to be crazy and irrational. (*Typically: be ~; go ~.) Why did you do that? You must be out of your mind! Don't drive so fast, Tom! You have to be out of your head!
out of your mindINFORMAL
1. If you say that someone is out of their mind, you mean that they are crazy or stupid. You spent five hundred pounds on a jacket! Are you out of your mind? It's far too much work for me. I must have been out of my mind when I agreed to it. Note: You can also say that someone is going out of their mind. I was so sure that was what she said. Sometimes I wonder if I'm going out of my mind.
2. If you are out of your mind with worry, grief, fear, etc., you are extremely worried, sad, afraid, etc. She's out of her mind with worry; her husband left the hotel this morning and hasn't been seen since. I was out of my mind with fear — I didn't know what to do. Note: You can also say that someone is going out of their mind with worry, grief, fear, etc. We have a lot of problems in our family. I'm going out of my mind with the worry of it all. Note: You can also say that someone is bored, scared, worried, etc. out of their mind, meaning extremely bored, scared, worried, etc. Charlie was twenty years younger than anyone else at the party and looked bored out of his mind.