Dirty banana Share definition Flag When a person sucks the d**k that's just been up their arse. Otherwise known as a chocolate BJ It was Darren's birthday, so I gave him a treat - a dirty banana Dirty banana by Sminton Baxter and Priya Patel September 28, 2019 0 0 Get merch Get the Dirty banana mug. Buy Now — $32.95 See more merch