Following are all the diddly-squat like words, in the list below.
DIDDLY SQUAT
100% like diddly-squat
DIDDLYSQUAT
100% like diddly-squat
DOODLY-SQUAT
100% like diddly-squat
DOODLEY-SQUAT
100% like diddly-squat
SQUADOOSH
100% like diddly-squat
DIDDLY
100% like diddly-squat
SOD ALL
100% like diddly-squat
JACK
100% like diddly-squat
DUCK FART
100% like diddly-squat
SQUEDUNK
100% like diddly-squat
ZIPOLA
100% like diddly-squat
BUPKIS
100% like diddly-squat
ZILCH
100% like diddly-squat
ZEROSVILLE
100% like diddly-squat
DOO-DOO
100% like diddly-squat
DIDDLE
100% like diddly-squat
DUCK EGG
100% like diddly-squat
A FAT LOT
100% like diddly-squat
SCUDDICK
100% like diddly-squat
DOODY
100% like diddly-squat
DOOBRY
100% like diddly-squat
BUBKES
100% like diddly-squat
DOODOO
100% like diddly-squat
BUPKUS
100% like diddly-squat
SQUATTER
100% like diddly-squat
ZERO
100% like diddly-squat
BUBKUS
100% like diddly-squat
SQUEEDUNK
100% like diddly-squat
DILLHOLE
100% like diddly-squat
CHIT
100% like diddly-squat
FUMDIDDLE
100% like diddly-squat
SHITTERY
100% like diddly-squat
DICKSHIT
100% like diddly-squat
BUBKIS
100% like diddly-squat
DIGGITY
100% like diddly-squat
FUBBLE
100% like diddly-squat
BATSHIT
100% like diddly-squat
DO DO
100% like diddly-squat
BUPKES
100% like diddly-squat
PILE OF POO
100% like diddly-squat
BUPKAS
100% like diddly-squat
LOLLYGAG
100% like diddly-squat
DANG
100% like diddly-squat
STUPIDY
100% like diddly-squat
DIPSHITTERY
100% like diddly-squat
SNAP
100% like diddly-squat
SHIGGLES
100% like diddly-squat
JOKE
100% like diddly-squat
BULLPOOP
100% like diddly-squat
DOOHICKUS
100% like diddly-squat
BUGGER
100% like diddly-squat
TODDICK
100% like diddly-squat
FLUMMADIDDLE
100% like diddly-squat
GUMPH
100% like diddly-squat
SHITDICK
100% like diddly-squat
BUPKASS
100% like diddly-squat
PIECE OF POOP
100% like diddly-squat
SQUIT
100% like diddly-squat
FIDDLE
100% like diddly-squat
DIPSHIT
100% like diddly-squat
DOODIE
100% like diddly-squat
BOPKES
100% like diddly-squat
DUDGEN
100% like diddly-squat
POOP
100% like diddly-squat
POOPY
100% like diddly-squat
NOWT
100% like diddly-squat
DUMBFUCKERY
100% like diddly-squat
SHITTON
100% like diddly-squat
DICKY-BIRD
100% like diddly-squat
DUMBASS
100% like diddly-squat
DUMPLING
100% like diddly-squat
DONALD DUCK
100% like diddly-squat
DAMN
100% like diddly-squat
ABSOLUTE ZERO
100% like diddly-squat
DAMMIT
100% like diddly-squat
DILLWEED
100% like diddly-squat
DOOKIE
100% like diddly-squat
DIPSTICK
100% like diddly-squat
SHITPISS
100% like diddly-squat
HEE-HAW
100% like diddly-squat
DIPSHIDIOT
100% like diddly-squat
DUMBBUTT
100% like diddly-squat
DAWCOCK
100% like diddly-squat
GOOSE EGG
100% like diddly-squat
SHITSACK
100% like diddly-squat
DICKSPLAT
100% like diddly-squat
DOODAH
100% like diddly-squat
BUPKISS
100% like diddly-squat
BLIVIT
100% like diddly-squat
RATFUCK
100% like diddly-squat
PANTS
100% like diddly-squat
IDIOTA
100% like diddly-squat
QUAT
100% like diddly-squat
DOOBER
100% like diddly-squat
DINDU NUFFIN
100% like diddly-squat
PUCKY
100% like diddly-squat
DICKWAD
100% like diddly-squat
DOODLEBUG
100% like diddly-squat
DUMBO
100% like diddly-squat
STUPIDICY
100% like diddly-squat