If you say
that someone did not do so much as
perform a particular action, you are emphasizing
that they did not even
do that, when you were expecting
them to do more.
I didn't so much as catch sight of him all day long.
Laura had not reproached him, never so much as mentioned it.
She auctioned off the car without so much as taking a ride in it.
COBUILD Advanced English Dictionary. Copyright © HarperCollins Publishers