A motion to quash is a request to a court or other tribunal to render a previous decision or proceeding null or invalid. The exact usage of motions to quash depend on the rules of the particular court or tribunal. In some cases, motions to quash are requests to nullify a decision made by the same or a lower court.

What does quash mean in court?

Definition. To set aside; to void. As in "to quash a motion" or "quash evidence."

What does it mean if something is quashed?

: to suppress or extinguish summarily and completely quash a rebellion.