bang off

Verb

 * 1)  To fire (a weapon or a shot); to ejaculate.
 * 2)  To typewrite quickly.
 * 3)  Of an automated loom: to have the shuttle fail to follow its intended path and bang against other parts of the loom.
 * 1)  Of an automated loom: to have the shuttle fail to follow its intended path and bang against other parts of the loom.