Diddywasher Share definition Flag A Scottish (Glaswegian) term meaning 'One who has a worthless job' or an unimportant person. I will not be lectured by this Diddywasher' Diddywasher by Don Curlywurly March 28, 2010 0 0 Get merch Get the Diddywasher mug. Buy Now — $32.95 See more merch