The 'M to the B' meme originates from a 2016 'send' or diss track by British rapper Millie B directed at rival Sophie Aspin during the height of the Blackpool grime scene. While originally a local UK internet sensation, the track gained massive global popularity in 2020 after TikTok star Bella Poarch used it for a face-tracking video that became one of the most-liked videos in the platform's history. The meme typically captures the aggressive yet catchy energy of British 'chav' culture or uses the song's rhythmic bouncing beat for comedic timing and sync videos. Today, it stands as a hallmark of internet crossover success, blending niche UK underground rap with mainstream social media trends.