No Bull Shit, and old hacker acronym which is usually used to signify that the talk will be serious.

Large, beautiful breasts that are keep well consealed and initially appear to be much smaller and less impressive than they actually are until unleashed.

Netspeak for "No Bullshit".

Nasty Bitch Sydrome. The nastiest motherfucker in the history of all motherfuckers. Commonly used by group of hooligans that go by the name of BNI to describe their most hated and no. 1 enemy. More feared then simps

A unit used to quantify ass shaking ability, originally an abbreviation of Nasty Black Stripper. A few reference points follow for better understanding

0 NBS - your standard white guy
4 NBS - your standard drunk chick
7 NBS - Shakira
10 NBS - "this stripper I saw in Egypt once" (the stripper after whom the unit is named)

For clarification NBS is a unit, not a scale, leaving this open ended with the possibility of more than 10 NBS (although this is extremely unlikely)

In addition NBS is sometimes used with 'degree' in a way reminiscent of the martial arts, see the examples that follow