A word that my friend made up to express extreme disgust about a situation, or that a certain thing or situation was completely rancid and gross.

An expression that someone would say if something is significantly nasty.
Person 1: *pukes all over person 2's shoes*

Person 2: WTF!?! That was sooo signasty!

Person 1: Sorry, I don't feel so good.

Person 2: ¬_¬ Arse.
by Tai-sama October 28, 2008

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt
Top Definition
N: An unofficial frat house that provides wickedly awesome parties. I.E. the Sig = Sigma and Nasty = Nasty. Adj: Describing an uber-awesome party or event.
N: Are you going to Sig-Nasty's on Friday, I heard its going to be jamungo.
Adj: That party at Iowa was Sig-Nasty
by TFWC December 16, 2010

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt