De Ser Humano — Epub Indigno

It seems you are referring to the phrase “epub indigno de ser humano” — a combination of the English/Spanish word “ePub” (a digital ebook format) and the Spanish title of the classic Japanese novel Ningen Shikkaku by Osamu Dazai, which in Spanish is often translated as Indigno de ser humano (literally “Unworthy of being human”).