Mochi, of Sioux Falls in South Dakota, US, enjoys dressing up and snacking on sweet potatoes. Picture: YouTube.com

London - In a dog-eat-dog world, you’ve got to have something special about you.

But that’s no problem for Mochi, an eight-year-old St Bernard, as she’s won the Guinness World Records title for the longest tongue on a dog.

At 7.31in (about 19cm), it smashed the previous record held by a Pekingese named Puggy whose tongue was 4.5in.

Owner Carla Rickert said of the rescue dog: "She’s so humble, she never brags or boasts but I know that she is as proud of her new record as we are."

Mochi, of Sioux Falls in South Dakota, US, enjoys dressing up and snacking on sweet potatoes. But her unique feature comes with its challenges such as extra slobber when she is nervous.