Bécane is a colloquial French term for 'motorcycle' or 'bike'. It's a more informal and less common word than 'moto', making it interesting and unique to encounter in lyrics.
In the song, the line "Y'a des bruits qui courent et d'autres qui font démarrer la bécane" (There are rumors circulating and others that start the motorcycle) uses 'bécane' to evoke a sense of urgency and action, fitting the gritty and street-wise tone of the track. It adds a touch of authentic French slang.
Sofiane's "Tout L'monde S'en Fout" is a really blunt and powerful look at a life lived on the edge, where the rules don't quite apply. He starts right off saying he took the emergency lane because he didn't have time to wait in line, and that he's "mal entouré, bouré comme la moitié d'ma ville" [badly surrounded, drunk like half my city]. It's a feeling of isolation and defiance, where he believes "Personne ne m'aime et puisque c'est comme ça j'irais sans vous" [Nobody loves me and since it's like that I'll go without you].
This song is all about a tough reality where trust is scarce and survival is key. Sofiane talks about growing up "sous un drapeau pirate" [under a pirate flag] and the violence he's seen and been a part of: "Oui mon sang a coulé et puis j'ai fait couler du sang" [Yes my blood flowed and then I made blood flow]. There's a strong sense that no one truly cares or understands his pain, encapsulated in the repeated line "N'oublie pas l'principal, au fond tout le monde s'en fout" [Don't forget the main thing, deep down everyone doesn't care]. He even says, "N'ouvre jamais ton cœur si tout le reste du monde s'en fout" [Never open your heart if the rest of the world doesn't care], which is a pretty stark warning. It's a raw, unfiltered journey through a life where the only constant is himself, and he's ready to face it alone.