Definition & Meaning of "goat shit"in English

What is the origin of the term "goat shit" and how is it used?

"goat shit" is a slang term that appeared in English in the 20th century, using "goat" and its excrement as a metaphor for something worthless, unpleasant, or of no value. The term draws on the idea that goat droppings are small, unpleasant, and insignificant. It is used in informal speech, writing, and online commentary to dismiss objects, ideas, or efforts as useless or contemptible. The term is vulgar and derogatory, intended to criticize or mock, with no neutral usage.