diddle diary Share definition Flag images collected by women during the day which are then used to masturbate. Female version of the spank bank. Girl 1: Check out that guys ass! Girl 2: Whoa!!! Thats going in my diddle diary. diddle diary by dp & ah January 12, 2009 0 0 Get merch Get the diddle diary mug. Buy Now — $32.95 See more merch