Top Definition
adj. (pron. nas-tor); A word which means horrific, terrible, or nasty. A combination of nasty and horrible. Commonly mispelled as nastor due to its pronunciation.
"Dude, your haircut is nasthor."

"Wow. That was the most nasthor thing I have ever seen."
by knightshade May 07, 2006

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×