The 'Sanpaku Eyes' meme stems from the Japanese term 'sanpaku gan,' meaning 'three whites,' referring to eyes where the sclera is visible above or below the iris. Traditionally linked to superstition regarding health or personality traits, the internet transformed this aesthetic into a shorthand for intensity, psychopathy, or 'main character energy' in anime and film. It gained massive traction on social media platforms like TikTok and Tumblr, where users identify characters or celebrities possessing this gaze to signal a dangerously attractive or unhinged vibe. Today, the meme is used to highlight moments of extreme focus, impending madness, or simply to appreciate the unique and striking facial feature that defines many iconic pop culture figures.