1 definition by Railroad History Buff

Blow and go” refers to the act of completing a task quickly so one can move to the next task. The origin relates to the building of the transcontinental railroad where railroad teams used explosives to blow tunnels through the Sierra Nevada Mountains to lay track.

More recent railroad references relate to performing a brake test before a locomotive departs a rail yard. The conductor will receive a “blow and go” before departing after the test has been performed.
“Once we get the plans stamped we need to blow and go.“

“We can’t waste time, we need to blow and go on these projects.“
by Railroad History Buff February 3, 2020
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