Fleetway Sonic is the darker, corrupted version of Sonic the Hedgehog from Fleetway's British Sonic the Comic series, which ran through the 1990s and gave the hero a far more violent, unstable personality than his video game counterpart. Fans later turned that portrayal into a popular online character, using clips, fan animations and edits to highlight his menacing grin and unstable behaviour. The laugh fits that reputation perfectly, which is why meme makers still reach for it whenever they want a familiar character to sound genuinely deranged rather than simply playful.