Other than the fact that I use the "F" word only for acts of sexual intercourse and the "S" word for defecation and manure, most of the vocabulary words and phrases used in the book and the movie are just common words and phrases known to me or even used by me.
My father grew up in the OLD West side of Oklahoma in what was known as the Cherokee Strip before Statehood and his father had been one of the Boomers in the 1889 Land Rush there. (A "Sooner" was a person who staked out his 160 acre homestead claim ahead of time and that was an illegal act. Boomers were not law breakers.)
Dad went to be with the LORD in Feb. 1994; but, I think he would have understood many of the expressions Annie Proulx used in her story. He stopped cussin' in the late 1930s; but, he did quote people sometimes when he wanted to prove a point and a cuss word was in the quote.
I have Cowboy Slang book that has the "teeth, popcorn, jug" expression in it under the "Homely" phrase section.
If I want people to think I am attempting to talk like a red-neck (includes so-called cowboy slang), I use the rinkworks.com's "Dialectizer's redneck program.
http://www.rinkworks.com/dialect/Here's a copy of what I wrote "Dialectized:"
Your Text, Dialectized (redneck)
Other than th' fack thet ah use th' "F" wo'd only fo' acks of sexual intercourse an' th' "S" wo'd fo' defecashun an' manure, most of th' vocabulary wo'ds an' phrases used in th' book an' th' movie is jest common wo'ds an' phrases known t'me o' even used by me. Mah Pappy grew up in th' OLD Wess side of Oklahoma in whut was known as th' Cherokee Strip befo'e Statehood an' his Pappy had been one of th' Boomers in th' 1889 Lan' Rush thar. (A "Sooner" was a varmint who staked out his 160 acre homestead claim ahaid of time an' thet was an illegal ack. Boomers were not law busters.) Paw went t'be wif th' LORD in Feb. Well bust mah britches an' call me streaker. 1994; but, ah reckon he'd haf unnerstood menny of th' expresshuns Annie Proulx used in her sto'y. He stopped cussin' in th' late 1930s; but, he did quote varmints sometimes when he wanted t'prove a point an' a cuss wo'd was in th' quote. ah have Cowfella Slang book thet has th' "teeth, popco'n, jug" expresshun in it unner th' "Homely" phrase seckshun. Eff'n ah's hankerin' varmints t'reckon ah's attemppin' t'talk like a red-neck (includes so-called cowfella slang), ah use th' rinkwawks.com's "Dialeckizer's redneck program, dawgone it.