The Brief: A social media shout-out or s/o is when someone promotes another person or account on social media.
Social media shout-outs often involve someone tagging another in a post or story. The purpose of shout-outs is usually done in order to increase someone’s follower count and clout. People may shout-out their friends’ accounts or ones that they recommend. Some influencers offer to give shout-outs to people as a paid service.