1) someone spewing nastyness from their mere presence
2) someone or something so nasty that it requires it's own definition
3) aka a nastadontist: being someone who specializes in being a nastadon and/or performing nastadonic acts
"That nastadon just put his tongue in my mouth, I think I just threw-up a little"

Nastadontist examples: "Two girls, one cup...need I say more."

"You nastadon, did you just shart yourself?"
by JessPeace July 12, 2009
Nastadon... Derived from the word Nastidon which was a pukemon(Pokemon satire). He was one of the 1337est of the 1337. Nastadon is just a side of his 1337ness and over threw the nastidon and is now the master of the 1337s. He pwns everything no one comes close to him.
Tempestwolf: Man u hear about that nastadon kid?
Gooses: Hell yeah that kid is fucking 1337 as shit man
Tempestwolf: Hell yeah he fucking OWNS!!!
Gooses: So fucking nasty
by NotNastadon July 06, 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.

×