  We present a theory of hydrodynamics for a vector U(1) charge in 2+1
dimensions, whose rotational symmetry is broken to the point group of an
equilateral triangle. We show that it is possible for this U(1) to have a
chiral anomaly. The hydrodynamic consequence of this anomaly is the
introduction of a ballistic contribution to the dispersion relation for the
hydrodynamic modes. We simulate classical Markov chains and find compelling
numerical evidence for the anomalous hydrodynamic universality class.
Generalizations of our theory to other symmetry groups are also discussed.
