Wiktionary
fires off
vb. (en-third-person singularfire off)
Usage examples of "fires off".
The fires off to each side of the tower flared up, and dark smoke began to stream off to the north.
General McIntyre puts my own meager knowledge to shame as he fires off commands to his adjutant to send a blistering message to the Minister of Xenology, demanding immediate and full analysis of Bessany Weyman's reports.
The photographer fires off his strobes, even though there's nothing to take pictures of--just nerves.