What does "MC" stand for? What's their role?

Native speaker’s answer
Rebecca
"MC" either stands for "Master of Ceremonies" or "Mic Controller." And typically, the MC is the one who leads and hosts a meeting or event. Sometimes it's spelled "emcee." They usually have good skills for hosting and entertaining during these events. Here, they're calling "Mike Savage" and MC for his entertaining host abilities. Ex: We don't have an MC for the prize giving yet. Ex: The MC told a couple of jokes and then invited the speaker on stage.