I have no idea what the title means, either. I took this during the Tuba Xmas (see my Dec 7 entry and my "festivals" folder) over at Underground Atlanta. My original thought was to take a picture of the fountain without any water in it, thanks to the drought. Then I saw this couple and decided to add them to the shot. So I guess the title is a combination of "no water in the fountain" and "love underground" (my first stab at it).
Here's a shot of the fountain in wetter times:
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if our love was a fountain then its totally dried up !!! .. sorry, just my depressing take on it .. great shot, and like ken says, with those great contrasts this could make an excellent b&w .. :)