It is an explanation that not only explains nothing, but is so plain that, while it makes as if it would say something different from what is already said, it really says nothing at all, but merely repeats the same thing over again.
higidura argitze-ekintza bat da, zeinak ez bakarrik ez duen ezer azaltzen, baizik eta hain argia den, ezen, jadanik esanda dagoenetik ezberdina den zerbait esateko ahaleginak egiten dituenean, ez baitu ezer esaten, soilik berdina errepikatzen du.