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2.
A word meaning "fuck you" or "fuck off" first; first used by Canadian prime minister Pierre Trudeau.
"What's your problem dude?"
"Oh go fuddle duddle"
"Fuddle Duddle?!"
"Yeh, Fuddle Duddle"
"Aight dude, I'll get right on that"
"What a fuddle duddlin' idiot"
by __DarkCloudz October 24, 2004
 
1.
A eupharism for "fuck you" originated by Canadian prime minister Pierre Trudeau.
"Oh, fuddle duddle!"
by Phil February 09, 2003