The way my mother used it when I was a kid makes me say it meant the kid-friendly version of other more forceful expressions of "Oh darn" or "fiddle sticks" and so forth.
fiddle
fiddle waddle
Sorry; my favorite online etymological dictionary has no such listing. However, "fiddle" does carry a contemptuous sense, "fiddle-faddle" means "trifles" or "busy oneself with trifles; talk nonsense", and "fiddle-dee-dee" is a contemptuous nonsense word.
no it's not it's an idiom
diddle, griddle, fiddle, middle, piddle, riddle
It is an four stringed instrument that is similar to a voila.
Somewhat; they are not true rhyming words, but when read fluidly, they will sound very similar.
Fiddle.
As fit as a fiddle.
A violin is a specific instrument, whereas a fiddle can refer to a whole load of string instruments, similar to the violin, such as the welsh crwth and the apachi Tzii'edo a 'tl. But a violin can be considered a fiddle
A little fiddle
As fit as a fiddle
Fiddlesticks is an interjection meaning something similar to "Oh, shoot!" A fiddlestick can also be the bow used to play a fiddle.
little fiddle
The duration of On the Fiddle is 1.43 hours.
As a noun: The lead singer of the group played the fiddle as good as he sang. As a verb: I can fiddle if you can play the guitar. Or: If you fiddle with that remote control one more time, you'll go to your room.
The viola is sometimes called a fiddle although whoever does is inaccurate, because the violin may be considered a fiddle if played in what i like to call "playing in a fiddle fashion. Please note that you can still fiddle on the viola since it is a technique but the viola itself is not called a fiddle.