A person who has to do all the tedious, unpleasant, or menial work in an organization; a drudge or lowly assistant.
From 19th-century British naval slang where 'dog's body' referred both to a cheap meal (peas and hardtack) and to the sailors who ate it. The term metaphorically extended to anyone treated poorly or given thankless work.
In British English, 'dogsbody' became the go-to word for office underlings and assistants—there's something specifically British about this term, likely because British naval culture heavily influenced formal workplace language and humor.
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