lunch out
verb1
Informal To have lunch either outdoors or in a restaurant; to dine out for lunch.
- Let's lunch out today.
2
Slang To be distracted, spacey or out to lunch, often as a result of cannabis use.
- Dude is totally lunching out right now.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.