didly boy Share definition Flag Didly is slang for pot. A didly boy is someone in the age range of 16-20s, who smokes a lot of didly. Dude did you didly all that didly already you freakin didly boy?! Haha didly boy by Sshikit April 27, 2016 0 0 Get merch Get the didly boy mug. Buy Now — $32.95 See more merch