by Rylee Jenner January 19, 2019

Shortened for “Nasty”; when something is enough to slightly disgust you or discourage your interest.
Bob: That deli down the block is open if your hungry.
Jane: Dude I’ve been in there for cigs and the place is so nast. No way.
Jane: Dude I’ve been in there for cigs and the place is so nast. No way.
by panic.dump November 28, 2020

NAST is abbreviated for Network Access Security Token. NAST primary use would be when accessing a computer remotely through tools like TeamViewer you have a security token which you would have to read back to the individual who is accessing your computer remotely. This is just a better term for the long string of characters you would on your screen when using said software.
Natalie: Hey Bob I think there might be a problem on my computer it’s running so sluggish.
Bob: Hey I wish I could but I’m out of town right now.
Natalie: Bob it’s important please help me.
Bob: Fine, just download TeamViewer.
Natalie: Ok it’s downloaded what do I do now.
Bob: Just read me the NAST one by one.
Natalie: The what, what is a NAST?
Bob: It’s a simple term for the long ASCII characters that I need you to read to me carefully so I can help you.
Natalie: Ok will do.
Bob: Hey I wish I could but I’m out of town right now.
Natalie: Bob it’s important please help me.
Bob: Fine, just download TeamViewer.
Natalie: Ok it’s downloaded what do I do now.
Bob: Just read me the NAST one by one.
Natalie: The what, what is a NAST?
Bob: It’s a simple term for the long ASCII characters that I need you to read to me carefully so I can help you.
Natalie: Ok will do.
by GAMERSLUBE LLC. July 10, 2021

This word is used to describe something beyond cool. Used in the same sense as "dirty", "sick", "elite", "unreal", but more refined.
- "Dude, did you see Cooper Cupp's 3 TD game last night?"
- "Yes, the guy is fucking Nast at football"
- "Yes, the guy is fucking Nast at football"
by NA$T April 28, 2022

by nastbetch101 November 29, 2021

Noun derived from "nasty". Umbrella term for anything gross and unwanted, generally in a food context. Dark spots on a plate that persevered through the dishwasher, a stray hair on a cookie that hit the floor, residue from a spilled drink.
"I used to like dipping cookies in milk as a kid, but now I can't stop thinking about all the nast floating in the milk afterward."
by anusvulture January 5, 2022

by Momma Nast October 16, 2020
