Jack Mormon
slang, someone sympathetic to, but not a member of, the Church of Jesus Christ of Latter Day Saints
en-US/ˈd͡ʒæk ˈmɔɹmən/
en-GB/d͡ʒæk ˈmɔːmən/
slang, someone sympathetic to, but not a member of, the Church of Jesus Christ of Latter Day Saints