Words at Play : Top 10 Rare & Amusing Insults, Vol. 2
Definition:
bumpkin; hick
About the Word:
The dialectal chaw means "chew."
The current culinary prestige of bacon doesn't make "bacon-chewer" seem like much of an insult, but chawbacon came into use back when bacon had a far humbler status.
Want more? See Rare and Amusing Insults, Vol. 1