a good female friend.
a female sweetheart or lover.
a tidbit. an elegant treat: The special wine was a bonne bouche. Historical Examples Glories of Spain Charles W. Wood The Mirror of Literature, Amusement, and Instruction Various The Overland Expedition of The Messrs. Jardine Frank Jardine and Alexander Jardine Peg Woffington Charles Reade The Port of Adventure Charles Norris Williamson and Alice Muriel Williamson […]
prepared in simple style, as in a cream sauce containing mushrooms: fillet of sole bonne femme.