Invented by the one and only original goon circa 2012. Ninini refers to the feeling of ultimate happiness and gooniness. The peak of peaks when it comes to feeling amazing.
"Hey, it's almost December."

"Ninini can't wait!"
by goonster October 1, 2014
Get the Ninini mug.
Something is really cute or when youre trying to explain something but you dont have the energy to describe it
*sees something cute* ”aww ninini
or
”and then i went there.. ninini.. and then we fucked”
by pocolocolova May 14, 2021
Get the Ninini mug.
the sound that a cute boy makes before an attack. many cute boys will scream NININI before they charge a group of unfortunate people whom will probably be frightened and probably pummeled by blunt objects.
Group of drug addicts"those cute boys think they are sooooo cool."
Cute boys "NINININI"
Drug addicts "AHHH SHIITTTT!" as they cower in a corner.
by sick flick October 26, 2011
Get the ninini mug.
a word to express disgustedness, being annoyed or describing how small and disgraceful someone/something is
me: ugh mrs smith gave me a 30 page booklet for homework! ninini
friend: ew, disgraceful
by undercover ninini April 29, 2019
Get the ninini mug.