Reference to the song "No sex in the champagne room" by Chris Rock. In it he says "Cornbread. Ain't nothin' wrong with that." So this word means that someone is perfect and you can't find anything wrong with her, just like cornbread.
Commonly known as the “golden bread of heaven”. Those who partake of it will be enlightened and ascend to a higher level of consciousness. Some say there is a man named Cornbread and that he knows da wae.