grinder

One who grinds something, such as the teeth.
A molar.
(slang) Any tooth.
Any of various machines or devices that grind things, such as by grinding them down or grinding them up.
Any of various machines or devices that grind things, such as by grinding them down or grinding them up.
Any of various machines or devices that grind things, such as by grinding them down or grinding them up.
(Northern-US) A submarine sandwich, a sandwich made on a long, cylindrical roll.
(Northern-US, Pennsylvania) A submarine sandwich, a sandwich made on a long, cylindrical roll.
A kitchen gadget for processing coffee, herbs etc. into small or powdered pieces.
The restless flycatcher (Myiagra inquieta) of Australia, which makes a noise like a scissors grinder.
(slang) A fan or performer of grindcore music.
(slang) A biohacker who uses cybernetic implants or biochemicals to enhance or change their own body.
(dated, slang) A student who studies hard; a swot.
(dated, slang) A person who coaches students for an upcoming examination.
(slang) A hard-working, physical player with limited offensive ability.
A low-ranking attorney with no clients who works very hard.
(US, slang) An outdoor space for drills and parades.
(informal) Atmospheric interference producing a roaring background noise.