Watch: Woman with world's largest mouth devours 10-patty burger

A world record was assigned to Marie Pearl Zellmer Robinson and her enormous maw. In a video called I Have the World's Largest Mouth!, we get to see Robinson's unique talents, which range from eating huge portions at once to fitting an entire baseball in her mouth. Zellman's mouth doesn't look unusually large when she's talking, but she can open it vert…