I’m sure you thought your mother in law was a shoe-in for this world record… but a guy named Isaac Johnson has set the Guinness World Record for “Biggest Open Mouth.”  He stretched his mouth four inches from top to bottom.  That beat the previous record of 3.75 inches, which was set last year.

New World Record for Biggest Mouth! (It's not your Mother in Law) https://t.co/RP31LwmLIw

— Mason in the Morning (@MasonsCountry) June 21, 2021