her TikTok makes no sense ????

This is from the most recent r/TikTokCringe video with many memes and best posts i have no idea what this tiktok could mean but she wants us to replace the s with an m so instead of going swimming and for sushi we go mwimming and for mumhi. i'm.... lost. So… where does she want it?? What does she want??? #reddit #tiktok #meme