The monojet search, looking for events involving missing transverse energy (ET) plus one or two jets, is the most prominent collider dark matter search. We show that multijet searches, which look for ET plus two or more jets, are significantly more sensitive than the monojet search for pseudoscalar- and scalar-mediated interactions. We demonstrate this in the context of a simplified model with a pseudoscalar interaction that explains the excess in GeV energy gamma rays observed by the Fermi Large Area Telescope. We show that multijet searches already constrain a pseudoscalar interpretation of the excess in much of the parameter space where the mass of the mediator MA is more than twice the dark matter mass mDM. With the forthcoming run of the Large Hadron Collider at higher energies, the remaining regions of the parameter space where MA>2mDM will be fully explored. Furthermore, we highlight the importance of complementing the monojet final state with mult