The term “Six Gorillion” or “Muh Six Gorillion” is an anti-Semitic reference associated primarily with the alt right segment of the white supremacist movement. It entered common use by anti-Semites and white supremacists in 2013 and has been increasingly popular thereafter.
Both variations of the phrase refer to the approximately six million Jews who were killed during the Holocaust. The phrase replaces “million” with the nonsensical “gorillion” to convey the impression that Jews wildly exaggerate the number of people who died during the Holocaust.
The variation “Muh Six Gorillion” employs the slang word “muh,” a version of “my” meant to convey whining or complaining; references to “Muh Six Gorillion” are intended to suggest that Jews whine or complain about the Holocaust, including gratuitously bringing up the Holocaust in order to deflect criticism. This usage is also a variant of the anti-Semitic phrase “Muh Holocaust.”