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  • booby trap
    booby trap
    noun
    a hidden bomb or mine so placed that it will be set off by an unsuspecting person through such means as moving an apparently harmless object.
  • booby-trap
    booby-trap
    verb (used with object)
    to set with or as if with a booby trap; attach a booby trap to or in.
Synonyms

booby trap

1 American  

noun

  1. a hidden bomb or mine so placed that it will be set off by an unsuspecting person through such means as moving an apparently harmless object.

  2. any hidden trap set for an unsuspecting person.


booby-trap 2 American  
[boo-bee-trap] / ˈbu biˌtræp /

verb (used with object)

booby-traps, present (3rd person singular) booby-trapped, past participle, past booby-trapping present participle
  1. to set with or as if with a booby trap; attach a booby trap to or in.


booby trap British  

noun

  1. a hidden explosive device primed in such a way as to be set off by an unsuspecting victim

  2. a trap for an unsuspecting person, esp one intended as a practical joke, such as an object balanced above a door to fall on the person who opens it

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. (tr) to set a booby trap in or on (a building or object) or for (a person)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Inflected Forms

Participles

Conjugated Forms

Present

Past

Future

Etymology

Origin of booby trap1

First recorded in 1840–50

Origin of booby-trap2

First recorded in 1940–45

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

With a chilly austerity worthy of Stanley Kubrick or Michael Haneke, Glazer turns a static shot into a booby trap and a daily activity into an indictment.

From Los Angeles Times Dec. 14, 2023

The soldiers passed a Russian military identification document, fluttering in the wind on the lawn of a house, but did not touch it to check the name, fearing a booby trap.

From Seattle Times Mar. 29, 2022

And he must navigate a legislative jungle that his opponents are trying to booby trap with amendments that could wreck his path to Brexit.

From Reuters Oct. 18, 2019

As star pitchers go through their first few spring training games, we watch as if a bomb squad is defusing a booby trap.

From Washington Post Mar. 12, 2014

Possibly the cup of tea was Dudley’s idea of a clever booby trap.

From "Harry Potter and the Deathly Hallows" by J.K. Rowling

Mr. Pompeo’s other measures have a similar booby-trap quality.

From Washington Post Jan. 12, 2021

Levi had triggered a booby-trap planted in the wall.

From Los Angeles Times Sep. 24, 2016

After police sealed off the area and ensured there was no booby-trap, the vehicle was towed away for forensic examination.

From BBC Nov. 17, 2015

The U.S. calls this the “the booby-trap bond” – a $3 billion issue due to Russian bond holders Dec. 2015.

From Forbes Dec. 12, 2014

Even if he has only a match and a can of Coca-Cola and a stick of mint gum, he can use them to booby-trap the bad guys and escape.

From "The Queen of Water" by Laura Resau

Brigadier General Iddo Mizrahi, chief of Israel's military engineers, said troops were in a first stage of opening access routes in Gaza but were encountering mines and booby-traps.

From Reuters Nov. 2, 2023

Frank falls into one of Bill's booby-traps after years of Bill living a safe — and totally solitary — life.

From Salon Jan. 30, 2023

Knowing how to spot booby-traps that could shatter their lives again is a necessary skill, she said.

From Seattle Times Apr. 29, 2022

“Carol of the Bells” is memorably used in Home Alone as Macaulay Culkin booby-traps his home.

From Slate Dec. 19, 2019

Or, one of those young scamps perhaps Who love to rig their bogus bogies, And set their artful booby-traps For over-unsuspicious fogies?

From Punch, or the London Charivari, Volume 102, January 9, 1892 by Various

But these nefarious prompts can also be hiding out on the internet as AI agents built into browsers encounter online data of dubious quality or origin, and potentially booby-trapped with hidden commands from hackers.

From Barron's Nov. 11, 2025

Standing ovations on Broadway are so common you might imagine the seats have been booby-trapped to eject patrons as the curtain calls begin.

From The Wall Street Journal Oct. 17, 2025

The Axios news website cited two sources as saying that Israeli intelligence services had booby-trapped thousands of walkie-talkies before delivering them to Hezbollah as part of the group’s war-time emergency communications system.

From BBC Sep. 18, 2024

In “Anatomy of a Fall,” even the rawest of emotional truths turn out to be booby-trapped, and the ever-thin boundaries between life and art are repeatedly violated.

From Los Angeles Times Oct. 13, 2023

“Around this time, all kinds of booby-trapped trinkets were being scattered on our airfield,” said Vera Tikhomirova, the 586th Regiment’s deputy commander for political affairs.

From "A Thousand Sisters" by Elizabeth Wein

I say “may” because “No Bears,” ingeniously constructed so as to continually reveal new layers of suspense and surprise, delights in withholding information and booby-trapping our assumptions.

From Los Angeles Times Jan. 11, 2023

Like Macaulay Culkin in Home Alone, he spends the rest of the night booby-trapping his fortress.

From The Guardian Aug. 5, 2011

Often, by the time the nearest army unit hears about an attack, the Viet Cong have already fled, and they make pursuit more difficult by booby-trapping the jungle trails behind them.

From Time Magazine Archive

Contemplating all this, the cynical wondered if Earl wasn't booby-trapping himself.

From Time Magazine Archive

In English, that meant: To all units: Japanese are booby-trapping personnel equipment, installations, and bivouacs.

From "Code Talker: A Novel About the Navajo Marines of World War Two" by Joseph Bruchac

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