Suddenly, the man’s expression changes from cheerful to shocked and blank, as if revealing his lower teeth exposed something embarrassing or unexpected.
The humor comes from the exaggerated difference in reaction — people often feel confident smiling with their upper teeth but may feel insecure or awkward about their lower teeth. This meme resonates because it plays on everyday insecurities while using the contrast between anime cuteness and real-life reaction images. It’s a perfect blend of anime culture, dentist jokes, and reaction memes.
