Question

Idioms? Slang?Or Jargon?

Separate the following words using the 3 terms:
In hot water, coons, bucking, blowin'in our jack, jungle-up

Answer 1

Idioms: In hot water, blowin'in our jack.
Slang: Coons, jungle-up
Jargon: Bucking.

Explanation:

An idiom is a group of words whose meaning cannot be inferred from their individual words, e.g. A bitter pill is an idiom for accepting unpleasant information, or To steal someone's thunder is an idiom for taking someone's big news announcement.
http://www.dictionary.com/browse/idiom

Slang are words that are used in an informal context amongst particular groups whose meanings are not that of the individual words, e.g. Kick the bucket is slang for to die, or Gutted is slang for feeling devastated.
https://en.oxforddictionaries.com/definition/slang

Jargon are technical words that are used in a formal context amongst people of the same profession that are difficult for outsiders to understand, e.g. Stochastic means a statistically random variation in Engineering Jargon , or Code Eight is a term that means an officer needs help immediately in Police Jargon .
https://en.wikipedia.org/wiki/Jargon

Knowing this, lets list our words. The best for jargon would probably be bucking, as bucking is a word used frequently in the horse and bull proffession as the technical term for an animal lowering its head and kicking its back legs, and it wouldn't be slang or an idiom because ther eis no hidden meaning to the word.

For slang, it would have to be coon and jungle-up. Coon because it is either a derogarotory term for dark-skinned people, or a shortening of the word raccoon, which both meanings lend an informal context. Jungle-up would be slang as well because it refers to the the setting up of camps of homeless people during the Great Depression, and is very much informal and not a technical term.
https://forum.wordreference.com/threads/jungle-up.1973135/

The idiom's would be in hot water and blowin'in our jack, both of which are already established idioms . In hot water is an idiom because it is a group of words which mean "in great trouble," a meaning which cannot be puzzled out from the individual words of the saying. The same goes for blowin'in our jack, which means "to lose or gamble all our money."

http://pediaa.com/difference-between-jargon-and-slang/

I hope I helped!