Dindoo Nuffin Share definition Flag it is the first thing a criminal says repeatedly when they are arrested on a police show. Trying to say they didn't do anything wrong. Ay man! I Dindoo Nuffin, Dindoo Nuffin, Dindoo Nuffin! Dindoo Nuffin by jonesberger April 12, 2019 Get the Dindoo Nuffin mug.