catch napping

Find completely unprepared

To catch someone napping is to find them unprepared or off guard, taking advantage of their inattention: The sudden price drop caught investors napping.

The image is of someone literally asleep when they should be alert.

We caught the defense napping and scored an easy goal.

Related

sneak attack · drop the ball · ambush · resting · wide awake · blindsided · sucker punch · wrong-footed · nodding · unaware · out of the blue · in the dark · flat-footed · off-guard · taken aback · ill-prepared · unready · easy target

Opposites
preparedness/alertness

catch nappingforewarn

Alert in advance

alert · tip off · heads up · give notice · warn

fairness of engagement

catch nappingplay fair

Act honestly in competition

forewarn · play by the rules · put on notice · alert · tip off

preparedness

catch nappingmeet one's match

Encounter a peer

Family

catch, napping, catches, catching, caught, catcher, catchers, napped, napper

Familiarity
Top 200,000
Profile
Used worldwide · Timeless · Everyday, not technical · Rated G