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Spanish slang term used for describing a generation of youth (between 16-35 years old) that neither studies nor works.
No ocupation at all, they usually leech their Parents' resources.
This word is originated from the conjunctions used in this sentence: "NI estudian NI trabajan".

Plural form is "ninis", can be written as ni-ni or nini.
In Spain, statistics show that generation ni ni is formed by more than 700.000 individuals and growing.

España es el segundo país europeo con mas ninis.

Me preocupa la generación ni-ni, es nuestro futuro.
ni ni by Wothanfja December 20, 2010
Related Words
Pronouced: Nie Nie
A friendly, yet unsexual, way of messing around with a fellow friend by taking your hand and shoving it as far up into the ass as it can go and then rotating it so that the hole is feeling intense pressure so that it forces the person being ni nied to squeze their butt muscles together and succomb to the host. This is all done with clothes on.
"If you annoy me one more time, I am going to come over there and give you a ni ni!"

"I heard last night that she got totally ni nied!"
Ni Ni by Topher Ducce September 25, 2008
Talk to you tomorrow ni ni 😘
Ni ni by Harlow 4 December 17, 2021
Ni Ni by tony yayo February 10, 2005
Crackhead: Sup bitch
Future: Caday
Crackhead: Ni Ni
Future: ni ni
Both: NI NI
Ni Ni by Dwight Schooler April 6, 2017
A boob/nipple or the tip of a baby’s bottle.
The baby who was weening off breastfeeding cried “I want Ni Ni!”
Ni Ni by Pashatababe November 25, 2025