A combination of the stink of a booty and the fishy smell of a pussy. Generally used to describe a rather foul smelling woman who has not bathed for several days or weeks.
The combination of smells between a strippers legs! The smell is created from a not so clean booty, and a dick and pussy smashing around together.
That stripper put her legs on my shoulders and all I could smell was boodussy. Dude, look at her hair, I bet it smells like boodussy in shorts! I just fucked Jessica Simpson and now my house smells like boodussy.