"Dum-dum" is an English slang term that emerged in the late 19th to early 20th century, likely inspired by the repetitive, childish sound of the words themselves, emphasizing simplicity or dullness. It came to describe a person who is stupid, silly, or slow-witted, often in a lighthearted or mildly mocking way. The term appears in everyday speech, children's literature, and informal conversation. It is usually mildly derogatory or teasing rather than harshly offensive, and can be used affectionately in playful contexts.

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

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英語での「dum-dum」の定義と意味

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