Definition of mucker in US English:

mucker

noun

  • 1A person who removes dirt and waste, especially from stables.

    • ‘At age 16, he began working in the mine as a mucker - the dirtiest and most difficult job in the mine.’
    • ‘As the lead instructor, owner, operator and stall mucker of KD Stable, I am not afraid of work.’
    • ‘I am an adult person, also a horse owner, who is available for part-time or full-time work as mucker or groomer.’
  • 2US informal, dated A rough or coarse person.

    • ‘These greedy muckers, they would cheat the village of their money and maybe one day they would just rebel and loot the village!’
    • ‘Things are getting desperate, but Dashti is just a simple mucker and a Lady's maid.’
    • ‘Billy was a mucker, a hoodlum, a gangster, a thug, a tough.’
    • ‘And if you're saying such a stupid thing you're most likely the wickedest mucker in the entire office. Thing is, you don't have to work with or around yourself.’

Origin

Middle English: from muck + -er; mucker (sense 2) probably from the phrase muck in. mucker (sense 3) is probably from German Mucker ‘sulky person’.

Pronunciation

mucker

/ˈməkər//ˈməkər/