Top Definition
Extension, inspired by Ned Flanders, of the commonly used word "fuck"
Adds emphasis and humour to an already overused word at the cost of it's sometimes offensive nature.

(It still should be considered unwise to use in front of in-laws, teachers etc.)
Kid A - "You have squashed frog between your toes!"

Kid B - "Fuckdiddly!"

Kid A - "I hear your 'fuckdiddly' and accept its light-hearted application to this frog-related incident"
by Andrew May 18, 2006
Extension, inspired by Ned Flanders, of the commonly used word "fuck"
Adds emphasis and humour to an already overused word at the cost of it's sometimes offensive nature.

(It still should be considered unwise to use in front of in-laws, teachers etc.)
Kid A - "You have squashed frog between your toes!"

Kid B - "Fuckdiddly!"

Kid A - "I hear your 'fuckdiddly' and accept its light-hearted application to this frog-related incident"
by Andrew May 18, 2006

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