In the Big Rock Candy Mountain,
There's a land that's fair and bright,
Where the handouts grow on bushes
And you sleep out every night.
The shacks all have to tip their hats and the railroad bulls are blind...
A term used by military pilots esp. the Air Force to indicate to combat controlers, targeters, and air command that the assigned or engaged target has been hit in a manner other than superficial damage.
Also adopted by some Spec. Ops forces with similar meanings.