english
1
general::
With not even, as in She stormed out without so much as a goodbye. [Mid-1600s]
American Heritage Idioms
2
general::
Phrase(s): without so much as doing something without even doing something, such as a simple courtesy. • Jane borrowed Bob’s car without so much as asking his permission. • Mary’s husband walked out without so much as saying goodbye.
McGrawhill's American Idioms And Phrasal Verbs