living under a rock

Verb

live under a rock (third-person singular simple present lives under a rock, present participle living under a rock, simple past and past participle lived under a rock)

1. (figuratively) To live in isolation: to live hermetically (especially, hermitically); thus, to be unaware of or be oblivious to common knowledge; to be isolated from knowledge of current events.
   • Of course I know about Looney Tunes, SpongeBob SquarePants, and The Simpsons. I do not live under a rock.
2. Used other than figuratively or idiomatically: see live, under, rock.
   • Eventually their misanthropy got so bad that they built a ferroconcrete underground home in the farthest boondocks of North Dakota so that they could literally live under a rock.