And, you know this place is as dull as ditchwater unless one does something.
"They're as dull as ditchwater, the whole gang of them," he said.
Dull as ditchwater, you'd think; but no, I don't find it so.
He looks as though hes so nice hell be as dull as ditchwater.
We have been walking for ten days now without an adventure—except Barnes's discovery that ditchwater smells longest.
Mrs. Bodfish and Mrs. ditchwater are talking in confidential undertones on a settee.
Life would be as ditchwater were it not stirred to its depths by K.'s secret cable.