Diddly Dan Share definition Flag A Diddly Dan is a person that like too diddle, which means dick play. Guy 1: yoo bro stop being a Diddly Dan Diddly Dan: I'm sorry I got a porn addiction Guy 1: bro.. Diddly Dan by MiniMeuwu September 15, 2021 0 0 Get merch Get the Diddly Dan mug. Buy Now — $32.95 See more merch