Obomanga is a Lingala word that translates to "you kill me." It's a powerful and dramatic expression often used in a metaphorical sense.
In this song, Fally Ipupa uses Obomanga to convey intense emotional pain and heartbreak. He's not literally saying someone is killing him, but rather that their absence or actions are causing him such profound suffering that it feels like he's dying inside. This word captures the raw emotion at the heart of the song.
Fally Ipupa's "Obomanga" is a plea from a man watching a relationship slip away. He opens holding onto small details of a woman who's already gone: "Des souvenirs et des photos" [Memories and photos], "Ta chevelure glissant dans ton dos" [Your hair sliding down your back]. He owns the blame outright — "Si t'es parti, c'est ma faute, reviens" [If you left, it's my fault, come back] — before sliding into the hook, "Mama souris moi, obomanga" [Baby, smile at me, obomanga] and "Pardon ne m'oublie pas, obomanga" [Forgive me, don't forget me, obomanga], repeating the Lingala endearment like a chant meant to bring her back.
In the second verse he names the absence directly: "Je ne te vois plus ces temps-ci" [I don't see you these days] and "T'as pris tes affaires et t'es partie" [You packed your things and left]. He's left asking "Qu'est-ce qui t'arrive, t'es pensive" [What's wrong with you, you're distant] and admitting "De ton coeur je suis banni" [I'm banished from your heart] — the song staying in that same pleading register, French verses framing a Lingala refrain, through to the fade.