The Lime Lips meme, often associated with the 'Sour Face' or 'Pucker' reaction, captures the involuntary facial contortion one makes after tasting something extremely acidic. The image serves as a perfect visual metaphor for situations that are awkward, bitter, or difficult to swallow. In internet culture, it has transcended literal food reactions to become a staple for expressing cringe or social discomfort. Its popularity stems from the relatable, high-contrast facial expression that resonates with anyone who has ever been caught off guard by an unpleasant surprise or a sharp remark.