The term 'Resting Bitch Face' (RBF) describes a facial expression that unintentionally appears angry, annoyed, or contemptuous when a person is relaxed or not expressing any particular emotion. While the concept has existed informally for years, it gained massive internet fame around 2013 following a viral parody PSA video by the comedy group Broken People. Since then, the RBF meme has become a staple of internet culture, used by people to explain their misunderstood expressions or to poke fun at the social awkwardness of being told to 'smile more.' It frequently features celebrities known for their stoic looks or relatable stock photos, serving as a humorous defense for those whose neutral faces are frequently misread.