Redundant posterior pharyngeal tissue (back of the throat) that causes an obese person to talk like a dying frog.
It was difficult to understand his garbled speech due to his ample internal jowls.
The inflamed pharyngeal tissue (in the back of throat) that causes the very obese person to talk like a dying frog.
It was difficult to understand what he was saying due to his internal jowls creating a speech impairment.