Ahegaokin (アヘ顔菌) is a surreal derivative of the broader Hikakin_Mania phenomenon popularized on Japanese video-sharing platforms like Niconico Douga. The term blends 'ahegao' (an exaggerated facial expression) with 'kin' (meaning bacteria or fungus), typically referencing highly distorted or edited versions of the famous YouTuber Hikakin. These memes often feature high-contrast, warped visuals and are used to convey extreme shock, absurdity, or overwhelming emotion. As part of the 'Otsukin' or 'Mania' subculture, Ahegaokin serves as a cornerstone of niche avant-garde internet humor, frequently appearing in MADs and remix videos to represent chaotic energy.