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Nasti is when something is gross, or nasty, but when you add the "i" at the end, it becomes slutty-ier.
Bob: "That girl Candi is sooo nasti"
Jimmy: "True dat brotha, nasti!"
by Definitely Raining April 24, 2008
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Nov 27 Word of the Day
A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.
That fucking smooth brain put his shirt on backwards again...

That smooth brain is dumber than a pile of shit.
by Tip Tank May 14, 2011
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2
Acronym for National Strategy for Trusted Identities. Pronounced the same as "nasty".
Some people have started referring to the proposed "National Strategy for Trusted Identities" as NaSTI, as both a time saver and as an opinion.
by empathy4uTM January 11, 2011
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