  We present a novel mechanism for thermal dark matter production,
characterized by a "bounce": the dark matter equilibrium distribution
transitions from the canonical exponentially falling abundance to an
exponentially rising one, resulting in an enhancement of the freezeout
abundance by many orders of magnitude. We discuss several realizations of
bouncing dark matter. The bounce allows the present day dark matter
annihilation cross section to be significantly larger than the canonical
thermal target, improving the prospects for indirect detection signals.
