Respuesta :
So, I'm assuming you're talking about Grey's Anatomy, yeah? If so, It is about Dr. Mayfield, an erectile dysfunction specialist, whose office is Number 22. Thus, "I've got an appointment with Mayfield in 22."
Mayfield in 22 was simply an illustration given to people who had an appointment with Dr. Mayfield.
Dr. Mayfield was an erectile dysfunction specialist. This simply means that he was a doctor that specialized in the male reproductive system.
People usually gave an excuse that they had an appointment with Dr. Mayfield in 22 and people won't check if the excuse was real as they usually believe that such people had erectile dysfunction.
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