A large domesticated pig, or informally, someone who takes more than their fair share of something.
From Old English 'hogg,' possibly from a Scandinavian source. Originally meant a young pig or sheep, but became primarily associated with adult pigs.
Hogs are incredibly intelligent—they're smarter than dogs and can learn their names—but calling someone a 'hog' is an insult because people associate pigs with being dirty and greedy.
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