A derogatory name for either a 'Hoe" or 'Hooker' who is unusually hirsute or hairy. Usually, unfeminine areas of hair, like the chest, face, back, or arms. It is called Bussy because of the unfeminine areas, not particularly for men only. It is also for alliteration, since bristle & bussy start with the same letter. This sort of concubine is interchangeable and not meant for literal use.
Jessica's hair is so good for a Bristle Bussy