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3. without so much as a by-your-leave

without so much as a by-your-leave

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without so much as a by-your-leave

  (old-fashioned)

if you say that someone does something without so much as a by-your-leave, you mean you are angry because they did not ask your permission to do it That's twice now he's just marched in here without so much as a by-your-leave and picked a book off my shelf!

See also: much, without