  A puzzling excess in gamma-rays at GeV energies has been observed in the
center of our galaxy using Fermi-LAT data. Its origin is still unknown, but it
is well fitted by Weakly Interacting Massive Particles (WIMPs) annihilations
into quarks with a cross section around $10^{-26}{\rm cm^3 s^{-1}}$ with masses
of $20-50$~GeV, scenario which is promptly revisited. An excess favoring
similar WIMP properties has also been seen in anti-protons with AMS-02 data
potentially coming from the Galactic Center as well. In this work, we explore
the possibility of fitting these excesses in terms of semi-annihilating dark
matter, dubbed as semi-Hooperon, with the process ${\rm WIMP\, WIMP \rightarrow
WIMP\, X}$ being responsible for the gamma-ray excess, where X=h,Z. An
interesting feature of semi-annihilations is the change in the relic density
prediction compared to the standard case, and the possibility to alleviate
stringent limits stemming from direct detection searches. Moreover, we discuss
which models might give rise to a successful semi-Hooperon setup in the context
of $\mathcal{Z}_3$,$\mathcal{Z}_4$ and extra "dark" gauge symmetries.
