A fuddy-duddy (or fuddy duddy or fuddy-dud) is a person who is fussy while old-fashioned, traditionalist, conformist, or conservative, sometimes almost to the point of eccentricity or geekiness. It is a slang term, mildly derogatory but sometimes affectionate too and can be used to describe someone with a zealous focus on order.
Ambrose Bierce's story Who Drives Oxen Should Himself be Sane, published in 1918, starts out with a use of the phrase and discussion of it as a "unique adjuration". Fuddy-duddy is used to indicate "stuffiness" and "outmoded tastes and manners". The Rolls Royce car manufacturer was referred to as a fuddy-duddy brand in a 2004 Popular Science article. It is also used in the title of juvenile fiction novels including Kay Hoflander's The Chautauqua Kids and the Fuddy Duddy Daddy: A Tale of Pancakes & Baseball,Uncle Fuddy-Duddy Rabbit Tales by Roy Windham and Polly Rushton. and Uncle Fuddy-Duddy Learns to Fly!.
Fuddy-duddy is considered a word based on duplication and may have originated as a fused phrase made to form a rhyming jingle. Duddy is similar to Daddy and may have caught on from children's rhyming.
They'll look you in the eyes and stone you
Then turn and disown you, don't you let them take the fight outta you
They'll walk all over your name 'til they find someone else to blame, don't let them take the
fight outta you
Secrets hide their lies inside hidden alibis, don't let them take the fight outta you
They put the world on a hook, it's worse every time I look
Don't let them take the fight outta you
I would rather take a punch than not give you a shot
I'd rather find out who you are than who you're not
Should have known better than to mistake business for love
Should have known better than to mistake a fist for a glove
It will be in your honor 'til you're not needed any longer, don't let them take the fight
outta you
Don't believe the headlines, check it for yourself sometimes, don't let them take the fight
outta you
The lies you live become you, the love you lose it numbs you, don't let them take the fight
outta you
They say that you've arrived but that's just a high-class bribe, don't let them take the fight
outta you
There's always someone younger, someone with more hunger, don't let them take the fight outta
They'll say you're the one and only
Then straight up leave you lonely, don't let them take the fight outta you
Like a transplant-patient waiting for a donor, don't let them take the fight outta you