
Catch somebody napping
Unexpected Action
Used when an action is done suddenly and the other person isn't prepared for it.

The pop quiz caught the students napping, and none had studied.
Metaphorical Use
It's a figurative phrase and doesn't mean someone is actually sleeping.

Our competitors caught us napping with their new marketing campaign.
Strategy Reveal
Can imply a smart or sneaky move by one party to gain an advantage.

He caught us napping by selling the stock before the market crashed.
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