Definition of clocker in English:

clocker

noun

informal
  • 1British A person who illegally winds back the milometer of a car.

    • ‘It was hoped that fitting digital odometers to cars would end the practice of clocking, but clockers are using computerised equipment to wind back the mileage readings.’
    • ‘A proficient clocker can complete a rollback job in a matter of minutes.’
  • 2US A drug dealer, especially one who sells cocaine or crack.

    • ‘By all accounts, Rocco is correct to look to Strike for the murder, since Strike is the homeboy, the clocker, the criminal with a record.’
    • ‘First, in reconceptualizing the narrative, Lee focuses on Strike, a young drug dealer, or clocker.’
    • ‘At the beginning of the film, there is little to differentiate Strike from his clocker counterparts.’

Pronunciation:

clocker

/ˈklɒkə/