Sanglante translates to "bloody" or "gory". It's a strong and somewhat dramatic adjective that isn't commonly found in everyday pop songs, making it stand out.
In the context of the song, the lyric "La chute sera sanglante" (The fall will be bloody) is a powerful metaphor. It suggests that the emotional downfall or breakup will be extremely painful and devastating, rather than literally involving blood. This vivid imagery makes the word particularly impactful and memorable.
This song is a total mood! Leslie Medina sings about being stuck in a frustrating relationship where she feels completely alone. She's up at "Quatre heure du mat sans nouvelles" [Four in the morning, no news], and her partner's voicemail is sulking. It's crazy how you can get used to anything, but she's never felt so lonely since he put her heart in the basement.
She's tired of her partner saying it's all in her head, especially when he only respects himself. She warns him, "La chute sera sanglante / Faudra pas pleurer" [The fall will be bloody / Don't cry]. The chorus is so blunt: "Ouais bébé, tu m'adores mais tu fous tout en l'air" [Yeah baby, you adore me but you mess everything up]. They had an agreement, but he's playing the loner. She keeps asking, "Qu'est-ce qui va pas chez moi / J'ai le don pour les gars comme toi" [What's wrong with me / I have a gift for guys like you]? It's a relatable feeling of giving everything, only for the other person to repeat their mistakes. She's done fighting his monsters and just wants out.