Nast 

The new and improved way to describe something repulsive. Is commonly used by teenage girls to convey their feelings about guys, any form of fried food, and their grandparents. Proceed with caution as this word when overused can be fucking annoying.

I'm never hooking up with Josh again. He's nast!

This salad is nast.

Nast by fliesandspiders November 13, 2014

nast 

Adjective. Basically short for nasty, but used when repulsed beyond the state of nasty.

That is nast!
Nast...

nast by Scott April 3, 2003

nast 

a word used to describe anything. usually used during a intense conversation between a group, or more than one individual.

1. "oh my god you little nast." 2. "did you see that one little nast over there?" 3. "nastbucket" 4. "nast nast nast"

nast by dharshini, sandra, matt. April 19, 2007

nast 

An object, smell, or sensation that can be described as nasty.

"I'm not picking that thing up, it has nast all over it!"

nast by jestermeister August 22, 2003

Nast 

The noun form of nasty, generally used to designate something unidentifiable that is nasty.

That festering bucket over there is full of nast.

Nast by Panderblaka13 October 8, 2012

nast 

short for nasty, because that of course is a mouth full. In other words: gross, disgusting, or replusive.

She won't out with you. She says your nast.

nast by Annnnnaaaa May 23, 2005

nast 

Noun form of the word "nasty". A word used to describe any unidentified substance or aggregate of matter, which doesn't necessarily have to be particularly nasty.

Patron: "Waiter, can we have some more of that tasty green nast?"
Waiter: "Do you mean the Tomatillo Salsa?"
Patron: "That's the stuff!"

nast by Jeo April 17, 2006