Bossoli translates to "casings" or "bullet shells". It's a striking and somewhat gritty word that immediately sets a tone for the song.
In the context of Shiva's
"Bossoli" is Shiva's portrait of the fast, dangerous glamour of street life in Milan. He raps about spent shell casings ("bossoli") scattered near his boxers, cash stuffed into designer bags, and jewelry piling up as proof he made it.
Under the bragging, the song turns more reflective. Shiva talks about losing friends along the way and learning that this lifestyle always comes with a price, especially for anyone who grew up in it too young.
The track (and the album it named) became one of Shiva's signature hits, capturing both the swagger of his rise and the toll it takes to stay on top.