Biddy bop Share definition Flag Biddy bop - To walk to a predetermined destination with a sense of urgency or purpose. I thought my brother was just in his room, but he had biddy bopped down the alley to his friend’s house. Biddy bop by The Keithster March 9, 2018 0 0 Get merch Get the Biddy bop mug. Buy Now — $32.95 See more merch