Watch on SFlix. "L'Argot Sous Un Garrot" is the first documentary dedicated to the work of rapper Booba. How is this major artist considered by society? Writers, journalists, linguists and students decipher the hidden face of the greatest French popular artist. Titled after a line dropped almost twenty years ago on the song Repose En Paix, the documentary aims to revisit, not Booba's life, but something rarer, his music as such.