A grinder, typically with a pair of grinding wheels (one at each end of the motor shaft) that is designed to be permanently mounted on a workbench.
A hand-operated device with rollers, for wringing laundry.
A mangrove (tree).
The mangle attached to wringer washing machines, often called the wringer.
To modify (an identifier from source code) so as to produce a unique identifier for internal use by the compiler, etc.
To change, mutilate, or disfigure by cutting, tearing, rearranging, etc.