(n.) A large posterior belonging to a woman (esp.
African-American),
see also: Paduncle-butt
Etymology: Popularized by Keith Murray's song "Fatty Girl" (2001), the term was used in African American Vernacular English (AAVE) since the 1990s. In the 1990s, a new species of whale (Rice's whale) was discovered of the coast of Louisiana, and need reports included references to a large posterior "peduncle" hump. The term "peduncle-butt" was adopted by the
African-American community to refer to a woman with "an ass like a whale". It transformed into the
onomatopoeia "badonkadonk" by those unfamiliar with its origin.