Out to lunch

Posted by ESC on April 24, 2001

In Reply to: Out to lunch posted by Fariba Asghari on April 24, 2001

: I want to know what "out to lunch" means.when it is used. I've heard it of my teacher and he told me: "you are out to lunch" whenever I wasn't mentaly there and I was thinking about something else.Did he use it in right way.Which expression is used to say that somebody is physically with you but he is not mentally with you.

Your teacher used it correctly. Another phrase is: "He is in another world." (But if you tell someone, "You're 'out of this world,'" that means you think he is amazing.)

Or another term is, "You've been daydreaming."