go the whole hog

Origin: ; the following etymologies have been suggested: * A reference to using the whole of a hog’s carcass for food, leather, etc., without wasting any part; or specifically to a poem by the English poet William Cowper (1731–1800), “The Love of the World Reproved” (published 1782) in which uncertainty among Muslims about which parts of a hog are permitted as food leads to the whole animal being eaten. * A reference to hog, possibly in the context of spending the entire sum of money. Origin information sourced from Wiktionary contributors (CC BY-SA 4.0).