I'm guessing that Leroy has asked Dr. H. Blog M.D. for a second opinion after the doctor informed him he was overweight, hence the doctor's comment. I say guessing because I don't know what actually happened, since the doctor's response does not seem to fit at all as a retort to "I want a second opinion." The confusion and awkwardness is enhanced further by Loretta's giggling at Leroy's misfortune, especially since, as I have pointed out several times lately, their bodies have exactly the same shape.
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