out to lunch

Definition

Away eating lunch or for a midday break; especially, away from work or a job.

Example Sentences

• "She's out to lunch right now, but you may leave her a note."
• "After he drove with his turn signal on for five miles, I was pretty sure he was out to lunch."
• "Zaphod Beeblebrox, adventurer, ex-hippy, good-timer, (crook? quite possibly), manic self-publicist, terribly bad at personal relationships, often thought to be completely out to lunch."