IPA: /ˈkwɑːʃər/
KK: /kwɑʃər/
A person or thing that suppresses or puts an end to something, especially a legal decision or action.
The quasher of the motion ensured that the proposal would not be considered.
Quasher is derived from the verb 'quash' (from Old French *quasser*, meaning to crush or break), combined with the agent suffix '-er' (meaning a person who). Thus, a quasher is a person who crushes or suppresses something.
Think of someone who 'crushes' ('quash') something, and the '-er' indicates that this person is the one doing the crushing.