The French word "jumeaux" (incorrectly spelled and pronounced "jumos") designates twins.

The characters "Tweedledum and Tweedledee" being mirror images of each other in mentality and demeanour, they have often been characterized as twins in popular culture, and their names have become a derogatory term for such pair.

A couple of vexing simpletons could aptly be called "Tweedledum and Tweedledee", but it's rather long-winded. "Jumeaux" (twins) is so much more expedient. It rolls off the tongue in a long sentence, on top of offering a golden opportunity to flaunt your school French. If you don't want to sound too much like a douchebag, just mistakenly add an "s" and pronounce it "djumoz" instead. Some people will think that you made up a new cool word, and it will boost your street cred.
“The chance that Don Jr did not walk these jumos up to his father’s office on the twenty-sixth floor is zero.” -- Steve Bannon
by AFrogMyself January 06, 2018
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Did you hear about that sex toy brand called Jumo omg they make such great products.
by Father_Enderman September 10, 2021
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Jumo(주모)(feminine) is an archaic Korean word refers to the barkeeper of jumak where they provide food, drinks, and accommodations for travelers.
It is depicted commonly in the Korean historical drama as the languorous travelers sitting on the wooden floor of jumak, yelling "jumo! fetch me some makgeolli(Korean rice wine)!"

Nowadays people on the internet call jumo for the situations that inspire their national pride(e.g. when Korean singers/sports figures perform well in the overseas) in a chauvinistic and yet hilarious way.
Heung-Min Son just scored his 21st league goal. Jumo, drop the beat!
by defzan May 19, 2017
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The slang way of saying that someone knows how to fight or that they know some form of martial arts.
Look at that sumo jumo mofo.
by PsychicChainsaw July 06, 2008
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