live under a rock verb1 •(figurative) 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. formslived under a rock · living under a rock · lives under a rock