grinding machine
idiomA machine tool in which a rotating grinding wheel is moved against the workpiece (or vice versa) in order to cut the latter to a desired shape.
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milling machine
A machine tool in which a rotating cutter is moved against the workpiece (or vice versa) in order to cut the latter to a desired shape.
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poop machine
An animal whose defecation inconveniences humans.
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sex machine
Someone with considerable sexual prowess.
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well-oiled machine
Something that operates capably through the effective coordination of many parts.