Gnasher is world-famous for his concrete-chompin' teeth, but this pooch takes the dog biscuit when it comes to tongues.
Mochi is a St. Bernard from South Dakota in the USA. Mochi's tongue is a whopping 18.58 centimetres long, which is bigger than some whole dogs, and almost as long as Gnasher's favourite sausage.
Mochi's owner says he's a happy-go-lucky dog with a big personalty. Maybe that should be happy-go-licky!
The previous record holder was a Pekingese called Puggy. Sorry, Puggy - Mochi's got you licked!
The new Guinness Book of Records: Amazing Animals is out now