booby trap

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Related to booby-trap: unwary

booby trap

[′büb·ē ‚trap]
(ordnance)
An explosive charge such as a mine, grenade, demolition block, shell, or bulk explosive fitted with a detonator and a firing device, and usually concealed and set to explode when an unsuspecting person touches off its firing mechanism by stepping upon, lifting, or moving a harmless-looking object.
References in periodicals archive ?
In October, 2009, the female partner of a PSNI dog handler suffered injuries after a car booby-trap device partially exploded at Kingsdale Park.
An attempt to lay a similar trap against security forces was foiled in Nuwakot district near the capital on Sunday, a day after 20 security personnel were hurt in the same district when a booby-trap exploded.
Serb troops are specialists in placing mines and making booby-traps, even hiding them inside dead bodies.