the world > movement > motion in a certain direction > going or coming out > letting or sending out > let or send out [verb (transitive)] > emit > suddenly or swiftly (3)
To emit swiftly and forcibly (rays, flames, etc.).
transferred and figurative. To send forth, or emit, suddenly and sharply; to shoot out; to cast (a glance) quickly and keenly.
To dart or shoot forth repeatedly (transitive and intransitive).