loyal fans of the ever awesome swimmer Michael Phelps, who succeeded in winning the most Olympic medals in total during the summer Olympics.
he is currently considered the greatest swimmer ever.
phelps phan is from the term fan, and the first two letters of phelps' last name.
swimmer one: oh wow! did you see phelps last night? he broke another record!
swimmer two: you are such a phelps phan.
a major fan of swimmer michael phelps. seen on a att commercial
man, i am such a Phelps Phan