gosh diddly darned it Share definition Flag gosh diddly darned it is a phrase for when you fuck something up and there are young children present *stubs toe* fu- I mean, "gosh diddly darned it" gosh diddly darned it by Ishmerp June 20, 2017 0 0 Get merch Get the gosh diddly darned it mug. Buy Now — $32.95 See more merch