dash off

US /dæʃ ɔf/
UK /dæʃ ɔf/
"dash off" picture
1.

to write or draw something quickly

:
She had to dash off a quick email before leaving.
He dashed off a sketch of the landscape in minutes.
2.

to leave a place quickly or suddenly

:
He had to dash off to catch his train.
As soon as the meeting ended, she dashed off to another appointment.