ADDED: In the comments, Mary Beth said: "I'm surprised, and a little let down, that this post didn't also have a history of the phrase 'hog wild.'" Thanks for missing the kind of Althouse extras that I really do love to provide. And here they are. The OED has this:
hog-wild adj. U.S. completely wild or unrestrained; crazy (chiefly in to go hog-wild).And here's a graph of the history of the use of "hog wild." For some reason, it spiked in 1942 and 1963. WW2 and the Kennedy assassination. Big events in those years. Any number of reasons to turn to "hog wild."
1893 Galveston (Texas) Daily News 11 Mar. 4/3 The state of Kansas has gone ‘hog wild’.
1940 C. McCullers Heart is Lonely Hunter i. ii. 26 This here white man had just gone hog wild. He were butting his head against the side of this brick wall.
2005 Time Out N.Y. 3 Feb. 82/1 New York City Ballet went hog-wild with promotions on January 22.