To leave hurriedly and secretly, typically to avoid detection or arrest.


(Source: http://www.vocabula.com/VRbestwords.asp)

Lack of self control; when you act against your better judgement.

(Source: http://www.brownielocks.com/words.html)

Bodacious is commonly defined as meaning variously blatant, audacious, impressive, remarkable or attractive. As you can tell from its wide-spectrum definition, this American word is one of those wide-ranging superlatives to which speakers turn when they want to say that some quality is present in large degree; that quality might be unreasonableness, impressiveness, insolence, or (most recently) female attraction, specifically big breasts. This last meaning seems to have become widely known in the middle 1980s after it was employed in the film An Officer and a Gentleman in 1982. Another film, Bill and Ted’s Excellent Adventure of 1989, contributed to its growing nationwide popularity.


(Source: http://www.worldwidewords.org/weirdwords/ww-bod2.htm)

A weak or foolish person.


(Source: http://listverse.com/2007/09/22/20-weird-english-words/)

Loudness and clarity of voice.


(Source: http://listverse.com/2007/09/22/20-weird-english-words/)

To loudly hum or buzz continuously.


(Source: http://lifestyle.iloveindia.com/lounge/list-of-unusual-words-11270.html)

A person whose hair has never been cut.

(Source:  
http://www.brainpickings.org/index.php/2012/07/02/project-twins-unusual-words/) 

A gadget; dingus; thingumbob. 


(Source: http://dynamo.dictionary.com/46009/twelve-absolutely-ridiculous-words)

A large suitcase or trunk that opens into two equal parts.


(Source: http://www.prdaily.com/Main/Articles/15_unusual_words_that_make_writers_swoon_10308.aspx)

The qualities or characteristics of a virago/Masculine qualities in a woman.


virago (plural viragos)

1. (said of a woman) Given to undue belligerence or ill manner at the slightest provocation; a shrew, a termagant
2. (said of a woman) scolding, domineering, highly opinionated; a fishwife, a nag
3. (said of a woman) rough, loud, and aggressive

(Source: http://en.wiktionary.org/wiki/viraginity ; http://en.wiktionary.org/wiki/virago)