Eso (helluva Boss) -

If you are referring to something other than the background brand, "ESO" is occasionally used by fans in these contexts:

: The brand frequently appears in the background of episodes, often featuring hellish puns or crude humor on its signage, consistent with the show's "Hellaverse" world-building. Eso (Helluva Boss)

: ESO is depicted as a major gas station and convenience store chain within Hell. If you are referring to something other than