Definition of clocker in English:

clocker

noun

US
informal
  • A drug dealer, especially one who sells cocaine or crack.

    • ‘First, in reconceptualizing the narrative, Lee focuses on Strike, a young drug dealer, or clocker.’
    • ‘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.’
    • ‘At the beginning of the film, there is little to differentiate Strike from his clocker counterparts.’

Pronunciation

clocker

/ˈkläkər/