Yellow dog is a term that refers to an actual dog known as a Carolina Dog or Dixie Dog. They are an indigenous "American Dingo" that were selectively bred in North America. They are presumably descendants of East Asian canines.

Yellow Dog can also refer to the drug "methamphetamine". It is also a popular song by Texan musician; John Nitzinger. The lyrics goes as following "Now they say it's the making of a mad man, the devil's finger in your vein".
One person's account goes as follows:

(Yellow Dog) is what we called around Dallas "desoxyn" which was methamphetamine hydrochloride. WE would get fat chicks and take them to this doctor in oak cliff and he would write prescriptions for it and people would soak them in water and shoot them up
"I'm thinking of breeding a Yellow Dog with a Siberian Husky"

"Oh man that yellow dog is gunna kill ya" - lyrics to "Yellow Dog"
by Feral Man August 2, 2014
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(v) - To slack or refuse to do something. To be lazy and "forget" to do something.

(n) - To be a slacker or someone who refuses to do anything.
Teacher: Would you hand in the homework please?
Student: Homework? Eh, I yellow dogged it last night and didn't do it.

Kid 1: Hey, you wanna come outside?
Kid 2: No way, it's like cold out.. and I'm tired...
Kid 1: Man, you are such a yellow dog! Do something for once!
by __Andrew October 14, 2005
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A statue added in gta online which has recently obtained a cult following after being added to the casino store.
It also looks like hand banana
The yellow dog with cone is the best decoration for your penthouse
by Big-digger-nick August 4, 2019
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Someone (generally from the South) who would vote for a yellow dog if it was a Democrat. Alternately, someone who would rather vote for a yellow dog than a Republican. The term probably dates back to the 19th century and gained national recognition in the 1928 Presidential election. Today, used most often as a term of approval or self-identification.
My daddy was a yellow dog Democrat and my granddaddy was a yellow dog Democrat — I’ll never vote Republican.
by Porch-sitter November 9, 2006
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The opposite of a yellow dog democrat; a person who would rather vote for a yellow dog than a democrat.
I'm a Yellow Dog Republican; I'd rather elect my dog than Biden for presidency.
by Nightwing384006 September 8, 2020
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Yellow Dog Democrat why don't you just switch to being conservative republicans you dirty incest-loving hicks.
by AndreaCow December 9, 2006
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