Niacin 

A natural Vitamin B supplement. Often taken to flush THC out of the body.

Dude, I have to go buy some Niacin so I can pass the drug test at Target.

Niacin by KevinStrudz August 1, 2011

Niagina 

The point where a girl is SO wet that her wetness is comparable to Niagara Falls.

Mitch: Dude I just preformed a magic trick for that girl over there.
Nick: She must be so niagina right now!

Niagina by Cock-a-hoop August 20, 2016

niccing 

taking a higher than normal dose of nicotine by putting a small amount of pure nicotine on the tip of a cancer stick. the pure nicotine is normally procured as greenhouse supplies or garden supplies as it is normally used as a pesticide. this is a very stupid thing to do because one can easily overdose.

joe was niccing the other day, but he overdosed because he is a big fat stupid pussy.

niccing by chuckybubbles June 15, 2011

niccin out 

To have a bad, bad nicotene craving...to the point of wierding people out.

Gimme a cigarette, dude, Im niccin out.

niccin out by Phil April 11, 2005

nicing 

The experience of going through cigarette withdrawl.

I was broke and nicing so I slipped a butt out of the public ashtray at the mall and lit it, leaving the smudge of a stranger's lipstick on my manly chops. But hey, a pimp gotta do what a pimp gotta do.

nicing by Bopidedoo June 21, 2006

Niasin 

The combination between 2 South African words the one
:Naai: A Idiot or Pussy
And the other

:Vesin: A dumb person with no common sense

Yoh that guy is so Niasin

Niasin by YoMaSePoeding April 30, 2021

niccin 

Craving for nicotine.

"Got a smoke man! Man you're niccin."

niccin by Hippot June 28, 2005