The Racism Watchdog meme originates from a popular Twitter gimmick account that gained notoriety for 'barking' at users who posted offensive or racially insensitive content. Featuring a profile picture of a stern-looking dog, the account would reply with aggressive strings of 'WOOF' to alert the timeline of problematic behavior. It quickly evolved into a versatile meme template used to signal when someone has crossed a line or to ironically mock the hyper-vigilance of internet discourse. Today, users employ the Racism Watchdog to react to everything from genuine controversy to harmlessly unpopular opinions, making it a staple of social media reaction culture.