The Dog Filter meme refers to the ubiquitous 'Puppy' lens first introduced by Snapchat in early 2016. Featuring floppy ears, a black nose, and a long tongue that appeared when the user opened their mouth, it quickly became the most popular filter on the platform. While initially loved for its 'beautifying' effects—such as smoothing skin and contouring the face—it eventually became a symbol of 'basic' social media culture and was frequently parodied. Today, the Dog Filter is used nostalgically to reference the mid-2010s aesthetic or ironically to comment on selfie culture and online vanity.