Sag-Nasty 

Sag-Nasty is the nickname for the post-industrial, mid-Michigan rust-bucket town of Saginaw.

It is also an apt description of the breasts of a female rapper named Khia.

Why doesn't Khia wear a bra? Surely she knows that her boobs Sag-Nasty.

Sag-Nasty by Hoopermazing August 4, 2009

Big n' Nasty

goin to Macdonalds and gettin the big and tasty

Yo lets go hit up the Big n' Nasty

Big n' Nasty by golf team November 15, 2005

sick nasty disgusting 

Although this phrase sounds derogatory, it is in fact a very, very positive thing. It is used the same way as "cool," or "awesome" in modern language.

Guy: "That nollie mctwist backflip was sick nasty disgusting!"

sick nasty disgusting by Ugly Dude Guy May 24, 2008

snaps nasty 

When something or someone gets real difficult to deal with in a hurry. Or, when things are going real well and turn to real bad in an instant.

That test was pretty easy, but then the last section snapped nasty.

Whistling Straits golf course snaps nasty.

snaps nasty by Wide Open Throttle March 5, 2009

McArch Nasty 

The act of fingering a girl on all fours with both hands, one from the front and one from the back to have your arms form a letter "M".

Someone put up a awesome shot of Sally getting a McArch Nasty in the Starbucks bathroom online. She's a whore.

McArch Nasty by Jiggamanflossin November 21, 2010

Shat Nasty 

The act of defecation

Hey Bill, I'm going to take a Shat Nasty!

Shat Nasty by bullfrog_jwa December 11, 2012

Slim Nasty 

A guy who's really tall, who is a baller at basketball, and skinny.

The kid at the school got the nickname Slim Nasty in basketball class because he was a skinny baller, but after 3 years he still had the nickname.
Slim nasty

Slim Nasty by SlimN June 7, 2013