The Heart-Shaped Boob Challenge first gained massive traction on the Chinese social media platform Weibo in 2017, where users posted photos or videos using their hands to manipulate skin into a heart shape. While originally presented as a test of flexibility or a form of body expression, it quickly transitioned into a global meme format used for parody and humor. The meme is frequently utilized to poke fun at viral trends, demonstrate expectations versus reality, or replace the heart with humorous objects like food or cartoon characters. Today, it serves as a staple template for internet culture commentary and social media engagement bait.