Guinness officials said Puggy, a 10-year-old Pekingese, made it into the record book with a tongue nearly as long as his body, The Daily Telegraph reported Thursday.
Becky Stanford, Puggy's current owner, said the canine was abandoned by its original owners.
"People who meet Puggy for the first time do a lot of double takes; they are in total disbelief and are amused by his unique appearance," Stanford said. "It means a great deal to us that he has accomplished what he has. From being a stray dog, being dumped, to being a Guinness World Record Holder is just phenomenal. I just can't believe it."
Other new records in the 2011 edition of the book include world's largest collection of "Smurfs" memorabilia, belonging to Stephen Parkes, 44, of Nottingham, England, and the world's smallest cow, a Rishworth, England, bovine measuring 33 inches from hind to foot.