booby trap

/ˈbuːbi ˌtræp/
A booby trap is a hidden device meant to cause harm, or a deceptive situation that appears safe but is intended to catch the unwary.

Examples

  • The advertisement was a clever booby trap that led consumers to buy unnecessary products.
  • The soldiers were warned about possible booby traps along the trail.
  • Booby trap was discovered in the abandoned warehouse, prompting the bomb squad to intervene.
  • The contract contained a booby trap that would penalise the buyer for late payment.
  • The spy disabled the booby trap before it could detonate.

Meanings

Dangerous device

A hidden device, often explosive, that is designed to cause injury or death when triggered.
First recorded in the early 19th century as a schoolboy prank, the phrase was later applied to concealed explosive devices during wartime.

Examples

  • Booby trap was discovered in the abandoned warehouse, prompting the bomb squad to intervene.
  • The soldiers were warned about possible booby traps along the trail.
  • He set a booby trap on the door to catch intruders.
  • The village suffered casualties from hidden booby traps left after the conflict.
  • The spy disabled the booby trap before it could detonate.

Figurative trap

A scheme or situation that appears harmless but is intended to catch or deceive the unwary.
The figurative use emerged in the mid‑20th century as the literal sense became widely known.

Examples

  • The contract contained a booby trap that would penalise the buyer for late payment.
  • Investors fell into a booby trap when the startup exaggerated its earnings.
  • The advertisement was a clever booby trap that led consumers to buy unnecessary products.
  • She realized the interview question was a booby trap designed to reveal her lack of experience.
  • The politician's promise turned out to be a booby trap for voters.
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