wringer
noun /ˈrɪŋə(r)/
  /ˈrɪŋər/
(also mangle)
Idioms - a machine with two rollers used especially in the past for pressing the water out of clothes that had been washed
 
Idioms 
go through the wringer 
- (informal) to have a difficult or unpleasant experience, or a series of them