E-girls and e-boys, sometimes collectively known as e-kids, are a youth subculture that emerged in the late 2010s and is almost exclusively seen on social media, notably popularized by the video-sharing app TikTok. Videos by e-girls and e-boys tend to be flirtatious and, many times, overtly sexual. Eye-rolling and protruding tongues (a facial expression known as ahegao, imitating climaxing) are common.