Breaking it down: "Eteima" could be a name or a term from a local language. "Bonny" is more recognizable. There's a place called Bonny in Nigeria, near the Niger Delta. "Wari" is also a part of Lagos, Nigeria. "13" might refer to 13th Street or something related to the year 13, but that's less likely. Maybe "Wari 13" refers to an event in Wari, Lagos, or Bonny, Rivers State, in 2013?