The 'Canthal Tilt' meme originates from the 'looksmaxxing' and 'blackpill' internet subcultures, where users hyper-fixate on facial features to determine perceived attractiveness. It specifically refers to the angle between the inner and outer corners of the eye, where a 'positive' tilt is associated with 'hunter eyes' and a 'negative' tilt is jokingly cited as a reason why 'it's over' for one's romantic prospects. The trend exploded on TikTok and Twitter in 2023, transitioning from niche forums to mainstream irony. It is now widely used to satirize the extreme lengths people go to for physical perfection, often featuring MS Paint-style red lines drawn over celebrity faces to 'measure' their tilt.