The country's leaders have been trying to 'muster' (up) support for the war.
His cooking could 'pass muster' in an expensive French restaurant.
These excuses will not 'pass muster'. [=they are not acceptable]
(..) Hello? - Are you sure you're okay, Chief? - Listen, I want you to call Flo. I want to get a search party together, all right? All the volunteers she can muster. Bring flashlights, too. Hey, you think we got a problem here? We should be out there right now. We should be helping look for him. (..)2016 TvShow: Stranger Things Title: Chapter One: The Vanishing of Will Byers Season: 1 Episode 1