Most likely Papa Mike Golf, rather than My Golf, Mike being the NATO phonetic alphabet representation of M. It's a reference to the last three characters of the operator's callsign.
totetsu
It sounds like Papa My Golf to me. I suspect ˈpɑːpə maɪk ɡɒlf/ is reduced to ˈpɑːpə maɪ ɡɒlf/ because of the closeness of the K and G.