Neologism in Against the Day?

[Mark Kohut]

I am away from my OED this weekend so I will ask the Plist hive mind: " badgirl" --one word--is used in AtD ( about Lake). How long has it officially existed, --on paper only we know--if it has? 

And, somehow badly connected in my mind why has badass --get it now?--as an adjective coalesced as a positive description for a woman? Or, back to the basics, has it? ( major uses I encounter says it is and Google n-gram says it is on the use rise!) what do real dictionaries say? 

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