NAB 

An Australian Financial Institution. HQ in Melbourne. The largest bank by market capitalisation on the Australian Stock Exchange as of March 2006. Well known for its "Homicide" and trading scandals.

Aussie: I am going to NAB for a deposit

American: @$#%?

NAB by Horng Wang April 22, 2006

nab 

nothing ass bitch

nab..a bum ass bitch,who doesnt have nothing,or no goals in life.need we say more?

nab by fitzjr July 26, 2009

NAB 

Used to describe a woman who loves drama and sleeps with men even if she knows they have STDs. NAB stands for Nasty Ass Bitch. This type of girl is often refered to as a slut, whore, skank, etc. She loves to talk shit about everyone, even people she says are her "best friends." She tends to party too much and cannot handle her alcohol. NAB is usually used to describe any girl who is a two-faced bitch nasty whore.

Have you talked to NAB today?
Who is that?
Oh, that's what we call Amy now cause she's a Nasty Ass Bitch!

NAB by haha...youknow March 9, 2011

NAB 

Acronym for a Non-Alcoholic Beer.

An ice cold NAB is the perfect refreshment when you've partied too hard the night before and need to appear social at an event.

NAB by Adult Beverage September 14, 2011

Nab 

Stands for "Not actual boyfriend". For a situation where the couple is between the "friends with benefits" and "official" stage. Either one or both of them are not comfortable with being called "official", yet everyone knows they are seeing each other, they are exclusive, and they do some couple-like things. They may not yet go on dates, however.

"Hey Karissa, did your nab finally decide he wants the label even though it's been 3 months?"

"Hey, what are you doing on tinder, aren't you exclusive?" -Emily
"Yeah, but like we're not REALLY dating yet..."-Karissa

Nab by Cucumbersdabest January 22, 2016

NAB 

NAB stands for: Nosey Ass Bitch

My neighbor is such a frickn NAB! She peeks through the cracks of our fence to see what we are doing. You can't even come home from the store without that NAB spying on us! One of these days I'm gonna freak that NAB out! When we need to give eachother a heads up because she's outside we say, oh NAB so she doesn't know we are on to her.

NAB by Mustangannie July 6, 2009

nab 

In a gaming environment a replacement for the word newb, newbie, or total retard in a given situation.

Good job nab! We just lost!

nab by LineDrive921 August 7, 2009