Ok I'm presuming that a Pepsicolian is a Episcopalian, While the different spelling is this something that you just have to hang around a certain crowd to start calling yourself a pepsicolian or is it a misspelling.
I’m sorry if that turned out to be an “in joke”.
Long long ago when I was an Episcopal Priest in Northeast Mississippi I was caught for, like, 30 minutes on a small country road behind a Pepsi Cola truck. Of course the first thing I notice was that the pastel red, white, and blue were like those on the “Episcopal Church Welcomes You” signs. Then, somehow my brain started playing and I intuited that “PepsiCola” was an anagram for “Episcopal”.
It’s hard to drive when you’re laughing hysterically.