Bank machine gunning 

Where when someone robbs a bank they don't do it like a pussy and do it with a note. They do it with a machine gun and just before they leave then machine gun it to hell.

He's bank machine gunning.

Bank machine gunning by Judge dredd7 June 19, 2011

Bank Machine gunning movement 

A movement among antiestablishment groups, like some factions of the neohippie movement, militant hippie movement,world reform movement,world wealth reform movement and anarchist ect. as a way to fight the establishment.

Where they go into a bank and machine gun it to hell. They may or may not also rob it.

Also some bank robbers are also in the movement and instead of robbing it with a note like a pussy they rob it with a machine gun and then machine gun it to hell.

He's in the bank machine gunning movement.

Bank Machine gunning movement by Judge dredd7 September 14, 2011