It means something that is ate-up, rodney-assed, bugen, white-trash, or otherwise lacking in decorum, taste or standards of any kind.

When the space shuttle Columbia crashed in the town of Nacodoches, Fox News must not have had a map handy, because they spelled it Nagadocious. When I said it to myself it sound like a word to describe something unsavory. Later my freinds and I decided on it full usage and implementation within the English lexicon.
"That's one nagadocious 1978 Trans-Am."

"Natural Light is a very nagadocious beer."

"That bitch is all sorts of nagadocious!"
by Tug August 24, 2004
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