Combination of gnarly and nasty.
That gal over there with the 5 o'clock shadow sure is narsty.
Basically a retardation of the word nasty, but invoking more disgust and repulsion.
"Ugh, did you see those autopsy close ups on CSI?"
"Yeah, that was narsty."
Nasty. But replace the "ass" in nasty (n-ass-ty) with "arse".
That fat balding man is so narsty-looking.
SO nasty, beyond disgusting, grosser than gross. Use it to describe food, people, outfits, feelings, anything narsty.
look at her....shes just so NARSTY
sex
"to do the narsty" means "to have sex"
man, you mean you really did the narsty with bill? that shit is whack!