Definition & Meaning of "jackassery"in English

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

"jackassery" is a slang term that appeared in English in the mid-20th century, formed from "jackass" (a stubborn or foolish donkey) and the suffix "-ery" to describe the quality or behavior of being foolish. It labels actions that are stupid, idiotic, or reckless. The term is used in informal speech, social commentary, online discussions, and humorous critique to mock or criticize poor judgment. It is mildly derogatory, context-dependent—playful or teasing among peers, but still conveys disapproval.