Tourette's Guy is a long-running viral internet character known for loud, profane rants in homemade comedy videos that circulated widely online in the 2000s. Short clips from those videos became reaction sounds because the delivery is so immediate and recognizable. The audio still shows up in meme edits, rage compilations, and nostalgic posts about early viral humor. Its staying power comes from how quickly it communicates exaggerated frustration, making it useful whenever a creator wants an old-school internet reaction with instant impact.