Incógnita translates to "mystery" or "unknown". It's a word often used in mathematics or to describe something that is yet to be revealed or understood.
In this song, Ñejo uses it to reflect on the uncertainty of life and death, stating, "cuando yo me voy a morir es una incógnita" (when I'm going to die is a mystery). This word adds a philosophical depth to the lyrics, making it stand out as he contemplates his own mortality.
In "El Día Que Muera" [The Day I Die], Ñejo and Miky Woodz lay out their very specific, and quite funny, last wishes. Forget sad goodbyes and crying; they want a party! Ñejo wants to be buried with his betting slips, taken for one last ride through the 'cuesta' [hill], and definitely no flowers. Instead, he wants candles lit, his music playing loud, and to be buried next to his grandmother in his neighborhood.
He even calls out his 'enemigos' [enemies] to come, but warns them not to cry because he did plenty of living and crying when he was alive. Miky Woodz echoes this sentiment, wanting his friends to bring bottles of whiskey and even half a pound of weed to his wake. It's a blunt, humorous, and very real look at how these artists want to be remembered: not with solemnity, but with the same energy and good times they lived by.