Josear is a Spanish slang term that means "to hustle" or "to work hard to make money," often in a resourceful or unconventional way.
In the context of this song, Jon Z uses josear to reflect his upbringing in the barrio, where he learned to survive and make a living through hard work and street smarts. It's a word that embodies the grit and determination central to the song's message about overcoming adversity.
Jon Z's "La Calle Es Mi Escuela" is all about how growing up in the neighborhood shaped him into the person he is today. He talks about the tough lessons he learned, like how "amigos traicionan" [friends betray] and "amores se van" [loves leave]. But even with those hard times, his family always made sure there was "comida en la nevera" [food in the fridge].
He really emphasizes that "El barrio es mi escuela" [The neighborhood is my school] and "La vida es mi maestra" [Life is my teacher], saying he learned "a cantazo' en la carretera" [by hard knocks on the road]. He learned to survive and not judge by appearances, even spending "muchas noches sin dormir" [many sleepless nights] praying for patience. He's proud of staying loyal to his crew, starting "to' desde abajo" [everything from the bottom], and now getting "millones de views" [millions of views]. He credits his success to God's blessing and those early freestyles on Facebook, declaring, "Nadie puede apagar mi luz" [Nobody can turn off my light]!