Green’s Dictionary of Slang

ooga-booga n.

1. (US) the vagina.

[US](con. 1962) J. Ellroy Enchanters 158: Lesser-known actresses displayed their ooga-booga, Full beaveroo, attached public hair.

2. (US) the essentials.

[US](con. 1962) J. Ellroy Enchanters 320: Doc, that criminal consciousness rebop lacks panache. let’s get down to the ooga-booga.