I think what he means is the Moon, aka Luna, will eventually sling off from Earth orbit and become a free satellite of the Sun. This event is supposed to happen in about 350,000 years IIRC.
Aye, I assumed something along those lines, but the way he wrote it was kind of ambiguous and funny. =P
I think I read a figure that the moon's average distance increases about a centimeter per year, but I could be way off on that. The mechanic for this is tidal drag, and it's a bit weird how it works. The moon's gravity causes tides on Earth, and the tides cause friction on Earth's rotation which gradually slows it down. At the same time, the tidal bulge pulls back on the moon, and since one bulge is always slightly ahead of the moon, the moon accelerates, which pushes its orbit higher.
Edit: Actually, this website explains it pretty well. And apparently the moon will not escape from Earth, but stabilize in a larger orbit sometime in the far future.
http://www.aerospaceweb.org/question/astronomy/q0262.shtml