Sonic X is the Japanese anime series based on Sega's Sonic the Hedgehog games, first airing in 2003 and later dubbed for international audiences. The line comes from Sonic's exasperated personality in the show, where the fast blue hero often has to explain himself to humans unfamiliar with him. As short anime voice clips spread on soundboards and in fan edits, this correction was isolated because it works without context. It remains popular for the same reason, letting creators borrow Sonic's annoyed tone for any obvious mistaken identity gag.
About this sound
Sonic snaps back with the line I'm a hedgehog not a cat from Sonic X, a short voice clip used for funny corrections and mistaken identity jokes.
This is a brief voice line from Sonic in the Sonic X anime, where he irritably corrects someone who has mistaken him for a cat. The delivery is fast, defensive and a little offended, which makes the simple denial sound much funnier than it should. At just over two seconds, it lands as an instant punchline rather than a full conversation. Viewers instantly get the joke because Sonic's spiky blue design is so recognisable, and hearing him have to state the obvious adds to the comedy of the correction in edits and reaction videos.