Muckers

noun

1. (Southern England) friend, acquaintance

   "Fancy a pint, me old mucker?"

2. (British army) A comrade; a friendly, low-ranking soldier in the same situation.

   "Go and talk to your mucker!"

3. A person who removes muck (waste, debris, broken rock, etc.), especially from a mine, construction site, or stable.
4. A low or vulgar labourer.