"You canker blossom!" 3 Shakespearean Insults
[1894+; fr the look of a book whose pages have been repeatedly folded at the corners; found in this sense by 1824]
To fold back the corner of a page to mark one's place in a book: Those of us who still dog-ear and reread her books say ''Who cares?''
[1886+; Found as dog's-ear by 1659]