Thanks to Michael Oreal for photo of the original stud muffin.
Phone conversation with good friend (M) who happens to have a fairly thick Egyptian accent:
M: So, what are you reading now?
RA: Tales of the City
M: Ah! I'm a stud muffin.
RA: (long pause) What?
M: I'm a stud muffin.
RA: Er. . . . congratulations?
RA: Congratulations. Very pleased for you.
RA: Ohhhhhhhhh! You said 'Armistead Maupin!'
M: Of course. What did you think I said?
RA: I thought you said you were a stud muffin.
M: Why would I say that?
RA: I don't know. Hence the confusion.