# Does タメ語{ご} mean “casual speech”?

A debate came up on the use of タメ語{ご} in this question, and I thought it was worth its own analysis.

The question is, does タメ語{ご} simply mean "casual speech", or does it mean "speech between equals". Or something else.

The difference has implications for whether or not it might be rude in some situations. For instance, asking an older or more experienced person to use タメ語{ご} instead of 敬語{けいご} might be rude if you're implying you are equals, but might be okay if it just means to use everyday language.

The original debate had two native speakers disagreeing (which should be a note to all those who hold native speaking ability as the be-all-and-end-all of authority), so to settle this we'll need convincing references.

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