lunch

be out to lunch (informal)

to be behaving in a very strange or silly way. And yet the conversation we had with him this morning suggests that he's not entirely out to lunch.

a liquid lunch (humorous)

if someone has a liquid lunch, they drink alcoholic drinks instead of eating food. I had a two hour liquid lunch and nearly fell asleep at my desk in the afternoon.

See also: liquid

There's no such thing as a free lunch.

something that you say which means that if someone gives you something, they always expect you to give them something or to do something for them. He offered me a room in his house, but he seems to expect me to do all the housework. I should have known there's no such thing as a free lunch.

See also: free, such, thing

---

out to lunch

1. not giving your attention to what you are doing. Their team is so good, they'd have to be totally out to lunch for us to win a game.

2. lacking good mental judgment. She's clearly an idiot, and even a five year old should be able to tell she's out to lunch.

Etymology: based on the literal meaning of out to lunch (= away from your place of business because you are eating lunch)