A 16-year-old from Pennsylvania just set the Guinness World Record for the BIGGEST OPEN MOUTH. His mouth is 3.75 inches from top to bottom when he opens it all the way.
World's Biggest Mouth
A 16-year-old from Pennsylvania just set the Guinness World Record for the BIGGEST OPEN MOUTH. His mouth is 3.75 inches from top to bottom when he opens it all the way.