I felt funny saying it to other people so i just said "a disney game" and when they were curious i told them Virtual Magic Kingdom and left out the acronym
V-M-K.
When I was 12 though my friends and I went through a phase where we would pronounce everything like how London Tipton said "Prindle" for the PRNDL in that one episode of suite life. So we used to say Veemac or veemik.