'dash off' definitions:

Definition of 'dash off'

From: WordNet
verb
Write quickly; "She dashed off a note to her husband saying she would not be home for supper"; "He scratched off a thank-you note to the hostess" [syn: dash off, scratch off, knock off, toss off, fling off]
verb
Write down hastily; "She dashed off a letter to her lawyer" [syn: dash down, dash off]

Synonyms of 'dash off'

From: Moby Thesaurus