The 'Last Rizzmas I Gave You My Gyatt' meme is a viral linguistic parody of Wham!'s classic 'Last Christmas,' heavily saturated with Gen Alpha slang commonly referred to as 'brainrot.' The trend exploded on platforms like TikTok and YouTube, where the original romantic lyrics are humorously replaced with terms like Rizz, Gyatt, Sigma, and Fanum Tax. It serves as a peak example of modern internet subculture, blending 80s pop nostalgia with the absurd, fast-evolving vocabulary of younger generations. Whether used in AI-generated song covers or shitposting videos, the meme captures the ironic and chaotic spirit of the 2023-2024 holiday seasons.