Pischello is an interesting slang term, common in Roman dialect but understood across Italy, meaning 'kid' or 'young guy'. It's not a formal word, which makes it stand out.
In the song, it refers to a "nuovo pischello" (new kid) who is about to go out and face the harsh realities of the streets. This word captures the youthful, sometimes naive, perspective of those growing up in challenging environments, making it central to the song's narrative about cycles of struggle and hope.
The title is a hat brim. "Visiera a becco, TN ai piedi" (Beak visor, TNs on my feet) is a uniform, and the reason for the curve is said out loud two lines later: "Visiere a becco nascondono gli occhi" (Beak visors hide the eyes). The hook is all movement and warning signs. "TomTom sempre in giro" (TomTom always out on the road) is a sat nav left running because somebody is driving somewhere, and "Luce blu vuol dire solo: 'Corri'" (Blue light means only one thing: 'Run') tells you who else is on that road.
Then the verses drop the swagger and do arithmetic. "Qui c'è un figlio che fa tre rapine" / "Per ogni madre che fa tre lavori" (Here there's a son who pulls three robberies / For every mother who works three jobs) is the argument in two lines, and it is a sharper one than the genre usually bothers with. The refrain refuses to be inspirational about it: "Non cambia se non cambi tu" (Nothing changes if you don't change), and immediately after, "poi certi non tornano più" (and then some never come back). The one tender line in the song is addressed to somebody else's mother: "Non piangere mamma se tutto va male" (Don't cry, mum, if everything goes wrong).