speed trap

(redirected from speed-traps)

speed trap

A stretch of road where the speed limit is strictly monitored, typically by police officers who have obscured themselves from passing vehicles. Hey, slow down, there's a speed trap up ahead!
See also: speed, trap
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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References in periodicals archive ?
The Department of Transport claims that detectors which alert drivers to mobile speed-traps interfere with "the police's right to carry out covert surveillance and affect their ability to do their job properly".
They said officers responsible for the speed-traps were re-assigned to frontline duties.