  Axions may make a significant contribution to the dark matter of the
universe. It has been suggested that these dark matter axions may condense into
localized clumps, called "axion stars." In this paper we argue that collisions
of dilute axion stars with neutron stars, of the type known as "magnetars," may
be the origin of most of the observed fast radio bursts. This idea is a
variation of an idea originally proposed by Iwazaki. However, instead of the
surface effect of Iwazaki, we propose a perhaps stronger volume effect caused
by the induced time dependent electric dipole moment of neutrons.
