1) Backchat 2) Banter 3) Friendly teasing 4) Frivolous banter 5) French word used in English 6) Joking 7) Playful banter 8) Playful repartee 9) Playful repartee or banter 10) Playful talk in bed again 11) Playful teasing 12) Raillery 13) Witty banter 14) Wordplay outrageous in time Found on https://www.crosswordclues.com/clue/badinage
Ba`di`nage' noun [ French, from badiner to joke, Old French to trifle, be silly, from badin silly.] Playful raillery; banter. 'He . . . indulged himself only in an elegant badinage .' Warburton. Found on http://www.encyclo.co.uk/webster/B/5