Maintaining class participation and engagement poses a unique challenge in teaching online courses at postsecondary institutions. With the distinctive rise of online instruction during the COVID-19 pandemic, there is a critical need to develop innovative and exciting opportunities in online course concept learning, application, and peer-to-peer engagement. To fulfill this need, I utilized the popular social media app TikTok to help students engage with sociological insights and concepts during course participation activities in two asynchronous, online Sociology of Sex and Gender courses at the University of South Carolina. TikTok is an online-sharing platform that allows users to create short videos with music and visual effects. TikTok can also be a valuable tool for increasing student engagement in online sociology courses. In this article, I describe this teaching activity, present findings of the preliminary teaching evaluation, and discuss the potential impact of using TikTok in online sociology courses.