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fuddle-duddle

American  
[fuhd-l-duhd-l] / ˈfʌd lˈdʌd l /

verb (used without object)

Canadian.
fuddle-duddled, fuddle-duddling
  1. to depart; be off.


Etymology

Origin of fuddle-duddle

First recorded in 1970–75; used by Pierre Trudeau ( def. ) in his defense against accusations of muttering obscenities in Parliament by claiming that he had actually muttered a harmless phrase that possibly was fuddle-duddle; apparently extension of fuddle, after fuddy-duddy, though sense is unaccounted for