This is identified as an adult who essentially baby sits another adult to keep them from embarassing themself, their family, and their friends, in public settings. This person might be in charge of limiting drinks, drugs, and flirtatious activity. This person should not be confused with a HATER as they are doing it for the benefit of said person!
Person 1: Man, Tishsa got straight WASTED for her party and doesn't remember a THING about what happened. Person 2: Well, clearly she needed a Social Chaperone but since the rest of her friends were wasted, too, she was on her own!!!