mullocker means A worker who clears waste material from a mine. Lexicurio rates it Sui generis — a strength score of 88 out of 100.
Etymology
From mullock + -er.
noun
- A worker who clears waste material from a mine.“This clause shall be satisfied as to such of the employees as are contract miners, or fillers, or truckers, or mullockers, by adding 1s. to the amount which they are to be respectively set to earn.”