From Longman Dictionary of Contemporary Englishshout somebody ↔ down phrasal verbSHOUTto shout so that someone who is speaking cannot be heard An older man tried to shout him down. → shout→ See Verb table
Examples from the Corpus
shout down• Gay activists and ladies with steel hair shouted each other down.• She encouraged Jett to shout Micky down and go back to their old style.• Sheriff George Crozier accused the lawyer of shouting him down during a trial at Kilmarnock Sheriff Court.• They flicked ash from their cigarettes into the empty wine-glasses and shouted each other down in vain attempts to be witty.• Mother shouted, jumping down off the bellows and tapping her daughter on the forehead with a poker. 