It literally means big butt in many West African languages such as Bambara (Bamanankan), Jula (Dioula), Maninka (Malinke). There is a popular song by Ivorian singers DJ Eloh & DJ Mix called "Bobaraba" celebrating the voluptuous round behinds of African women.
Person 1: "Fatoumata has such a bobaraba"
Person 2: "Yea I know, it's so big !"
This is a magical thing that is sorta like that squirtle thing and a washed up seal, it lives underwater, no one knows what it is, It is the bobalobalobacus
I saw a bobalobalobacus in the water today! The bobalobalobacus was very nice