"챌린지 영상" refers to challenge videos commonly found on platforms like YouTube and TikTok. In these videos, creators participate in various challenges, often involving fun or difficult tasks, and share their experiences with viewers. These videos can range from physical challenges, like the Ice Bucket Challenge, to creative ones, such as cooking or art challenges. They often encourage audience participation, inviting viewers to try the challenges themselves and share their results, fostering a sense of community and engagement among fans.