One of the most important words used to describe Silverfish.
Mary: What is that?
Harriet: Hm? Ew, it's a Silverfish!
Mary: NASTY! KILL IT!!!
by Rei Hano April 14, 2009
something that looks good.
Them shoes look nasty.
by bowsgurl132004 February 26, 2004
fucked up
man you nasty as fuck
by sean February 05, 2004
National Association for Sleepy and Tired Youth
Amanda was so confused by the difference between sleepy and tired that she consulted the NASTY council. Sure enough, sleepy and tired are very different words.
by wowowowowowowowhasdt September 09, 2011
A nasty is someone who does not bathe, brush their teeth, or even attempt any sort of hygienic activity.

They are typically very loud and obnoxious, and cannot comprehend normal social etiquette. They like to loom in the distance and listen in on normal people's conversations, walk too close to you, and generally act creepy.
Nasties tend to group together, and it is not uncommon for them to become a clique, where they will proceed to inter-date and fester in their own little worlds.

Everyone knows a nasty. No one can escape their greasy clutches. The best you can do is avoid eye contact and sit as far away from them as physically possible. Becoming friends with them will only make you miserable and a social outcast.
Nasty: Hey.
Student: Oh... uh, hi.
Nasty: We used to ride the same bus. Remember that hat you let me borrow?
Student: ...Yeah...
Nasty: I still have it. It still smells like you, too, lol.
Student: FFFFFFFFFFFFFUUUUUUUUUUUUUU

Student 1: Oh my fucking god, that nasty is creepy as HELL.
Student 2: Fucking nasties.
by bathe regularly, children. November 14, 2010
little brown cigars sold in packs of twenty for a fraction of the cost of normal cigarettes; the smoke of choice for welfare recipients everywhere
"Can I get a pack of Nasty's?"
by pegiampeg January 16, 2008
something that is very excessively good.
"Get any nasty albums in the mail today Dwight?"
by Henry Casas IV December 16, 2005

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