This study examines the impact of social media platforms X and TikTok on the linguistic behavior of teenagers. The study emphasizes the important role of the digital context in encouraging linguistic creativity and innovation. This study employs a descriptive approach as its research method to analyze 10 examples of English slang expressions selected deliberately. The findings reveal that teenagers are actively involved in the use of slang in social media interactions. This linguistic adaptation is achieved through the modification of existing terms or the creation of new terms. Rapid dissemination, cross-platform adaptation, and specific usage are influenced by peer networks and viral trends. These findings highlight the role of X and TikTok as drivers of linguistic evolution, with implications for educators and linguists studying contemporary language change. Further research could expand the sample size or explore cross-cultural variations in the use of digital slang.