A stupid or foolish person; also literally a male donkey.
Compound word: 'jack' (a male of an animal) plus 'ass' (a donkey). The animal meaning came first, and the insult developed because donkeys were considered stubborn and foolish by medieval Europeans.
This insult reveals medieval attitudes toward animals—donkeys got a bad reputation for being stubborn (actually they're cautious and intelligent!), and once an animal is labeled stupid, calling a human that name sticks around for centuries.
While 'jackass' is gender-neutral in origin, it carries masculine-coded insult weight in practice. It often implies stupidity via a male animal, reinforcing masculine association with foolishness in slang.
Use only for behavior, not character. Criticize actions without gendered insult frameworks.
["unreasonable","reckless","foolish"]
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