Bicrave is a French slang term, originating from Verlan (a type of French argot where syllables are inverted), for "bicraveur" which means a drug dealer or someone involved in hustling.
In the context of the song, it highlights the harsh realities and limited options faced by the youth in certain neighborhoods. The line "Entre potes, on a rien à part la bicrave et l'entreprenariat" (Among friends, we have nothing but hustling and entrepreneurship) starkly contrasts the illicit with the legitimate, showing the struggle to find a path to success.
Soprano and Limsa D'aulnay team up for "Si Tu Savais" to give us a look into a life that's far from glamorous. Limsa D'aulnay talks about not having a tour bus or Soprano's career, instead hanging out with friends, with nothing but "la bicrave et l'entreprenariat" [drug dealing and entrepreneurship] to get by. He even jokes that his girlfriend laughs at him when he says he'll quit smoking tomorrow. It's a blunt take on the grind, where success in rap isn't about being a pro anymore, but about who you know, or rather, "faut sucer si tu veux être propulsé" [you have to suck up if you want to be propelled].
The song really highlights the harsh realities of growing up in certain areas. Limsa D'aulnay remembers his mom carrying the mental load while he was "zoner, d'né-tour" [hanging around, turning around] outside. He points out that kids are out trying to make money because they're "privés d'éducateurs et du quatre heures" [deprived of educators and afternoon snacks], and if you knew what they'd seen, "t'as peur" [you'd be scared]. He contrasts their upbringing, eating "quatre-quarts, pas des bûches" [pound cake, not Yule logs] and watching "Scarface, pas Les Tuche" [Scarface, not The Tuche family], with a more privileged one. It's a powerful and honest look at the struggles and choices made when opportunities are scarce, all while asserting their intelligence and resilience in the face of judgment.