It simply means to agree with someone.
Hey that is awesome! You know it! Dang diddly.
by SpitfireZero79 February 14, 2018
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The most whitest and country way to say “oh shoot”. Can be used angrily or in a joking matter depending on tone.
by Horton_Hears_A_Who November 7, 2019
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diddly dang is another word for a penis

created by the gritches, for the gritches

(16/12/2013)
"maybe diddly dang can be our penis"
"diddly dang? diddly dang"
"I want the diddly dang"
by gritches December 16, 2013
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