1. a person who removes muck or dirt, especially one who cleans stables
2. a person who works in mines, especially one who loads ore or removes waste
Usage: mining
3. a coarse or vulgar person
Usage: informal; derogatory

Examples

• The stable mucker arrived early to clean the horse stalls.
• He worked as a mucker in the copper mine for several years.
• The miners hired additional muckers to clear the debris.
• She started as a mucker before becoming a shift supervisor.
• The old mucker knew every tunnel in the mine.
• Don’t be such a mucker at the dinner table.