scrubber

noun

1. A person or appliance that cleans floors or similar by scrubbing.
2. A soft and flexible handheld polymer-fiber implement for scrubbing tasks.
3. A device that removes impurities from gases.
4. (historical)A machine for washing leather after the tanpit.
5. (Commonwealth)An animal (especially cattle) that has broken away from the herd and established itself in the bush.
6. (Australia)Someone who lives in the bush; a wild person, someone only partly assimilated into society.

   “‘He was a real scrubber that old feller,’ he confided gleefully. ‘No one never got a tag on him before this.’”

7. (Ireland, UK, slang)A prostitute or a slovenly woman.

   “What did you think, it was happy ever after with a Woodlands Road scrubber in a seaside resort?”

8. (Ireland, UK, slang)A dirty or unhygienic person.
9. A horizontal bar allowing the user to set the playback position.