When a computer fault that has been plaguing a user suddenly disappears at the mere presence of someon who works in I.T.
The "system fault" was resolved using the placebo effect of I.T.
To unload an AK47 or similar military rifle by firing it on fully automatic until the magazine is empty, usually into the air while ululating, yelling or howling.
The act of firing it until empty for the sheer joy of making a noise.
The enemy soldier dived for cover when I sent a Beirut-unload in his direction