חפשו מילה כלשהי, כמו sparkle pony:
 
1.
Someone in a constant bad mood.
O, you alright Noif
מאת MichaelKalugin9 22 במרץ, 2010
 
2.
"Nerf" as pronounced in Brooklyn, NY
He hit me with a noif ball!
מאת stobbchi 18 ביולי, 2011
 
3.
to drink coke or any soda, without opening it's cap fully.

It stands for:
Not Opening It Fully

Many people who noif, tend to have long lasting drinks. And they are also considered "kool" by their peers.

Origin of it is not clearly known, however some noifers have said that it originated in inner-melbourne suburbs.
Dude 1: Whats that style of drinking called?

Dude 2: itz called noifing manz, only kool people do it.
מאת Jman23 26 באפריל, 2005
 
4.
to drink without opening the lid of the can fully. which leaves a little gap.
Jaz: thats so kool manz.
GEZ: YOU SHOULD TRY IT, EVERYONE LOVES TO NOIF.
מאת Ganod 26 באפריל, 2005
 
5.
you a loser open your drink!!
dont noif it so fuckin gay
מאת David_is_Fat 28 באפריל, 2005