Dead
Literally, it would mean being shot with a machine gun: The soldier machine-gunned the enemy. Figuratively, it can relate to things making the same sound as a machine gun (a woodpecker machine gunned in the distance), or things coming at you too rapidly to deal with them individually: they machine-gunned suggestions at her.
Roboticist.
automatic teller machine
loner
Because as soon as you came out of YOUR protective trench to get to the enemies trench you would be machine gunned down.
A Slot Machine
airplane, airliner, flying machine
machine language, assembler code
An autoteller is another name for an automated teller machine, also known as an ATM.
It's still an assembler, just because the machine it is assembled in isn't running doesn't mean the name changes.
it was called the valentines day massacre
If someone is "gunned down" it means they were shot, and most likely died as a result of the gunshot wound(s).