Originally known as 'The Annoying Thing,' Crazy Frog was created in 2003 by Swedish animator Erik Wernquist to accompany a sound effect created by Daniel Malmedahl. The character became a global phenomenon after being featured in a remix of the 'Axel F' theme, dominating ringtone charts and early YouTube culture. Known for his invisible motorcycle and high-pitched vocalizations, Crazy Frog represents a specific era of internet viral marketing and early CGI humor. Today, the meme is used to evoke nostalgia for the early web or to describe high-energy, repetitive, or mildly irritating situations that people can't help but find catchy.