That’s an FBI term, by the way. An ambitious person is said to have blue flames coming out of their arse. That’s neither here nor there, but is the sort of free-association that happens when you haven’t had enough sleep, and you’ve just been writing up a several week extravaganza of phreatic eruptions at Mount St. Helens.
I’m going to go drink to Dave Johnston, who first saw the blue flames dancing within her craters, and Dwight Crandell, who called the conclusion very nearly perfectly. Join me in raising a round to their memory.