Dictionary:

bodacious

  (bō-dā'shəs) or bardacious (bär-) Southern & South Midland U.S.

1. Remarkable; prodigious.
2. Audacious; gutsy.

1. Completely; extremely.
2. Audaciously; boldly.

[Probably from dialectal boldacious, blend of BOLD and AUDACIOUS.]

REGIONAL NOTE   Popularized in the comic strip Snuffy Smith, bodacious is probably a blend of the words bold and audacious, whose combined senses are evident in the following description of Sevier County, Tennessee, as “the most bodacious display of tourism this side of Anaheim” (Los Angeles Times). A more traditional meaning is “remarkable, prodigious”: “a bodacious amount of smoke” (Springfield MA Morning Union); “the most bodacious tale of hidden treasure” (Lawrence E. Will). Bodacious can also be an adverbial intensifier: “She's so bowdacious unreasonable when she's raised [irritated]” (William T. Thompson). African-American speech in New York City retains this Southernism as bardacious. Joseph Wright's English Dialect Dictionary cites the form boldacious, which is the likely source for bodacious.

The adjective has 2 meanings:

Meaning #1: (regional informal) incorrigible

Meaning #2: unrestrained by convention or propriety
  Synonyms: audacious, barefaced, bold-faced, brassy, brazen, brazen-faced, insolent