Matching Icons, often referred to as 'matching pfps,' is a social media trend where two or more people use complementary profile pictures to signify a close relationship. This practice gained massive traction on platforms like Tumblr and Twitter, eventually becoming a staple of Discord and TikTok culture. Usually featuring anime characters, iconic cartoon duos, or aesthetic photography, these icons serve as a digital 'best friend necklace.' The meme often involves choosing characters with a specific dynamic, such as rivals, lovers, or chaotic partners, allowing users to express their bond through shared visual storytelling.