"Fire in the hole '' is a warning that an explosive detonation in a confined space is imminent. It originated with miners, who needed to warn their fellows that a charge had been set. The phrase appears in this sense in state mining regulations, in military and corporate procedures, and in various mining and military blasting - related print books and narratives, e.g., during bomb disposal or throwing grenades into a confined space.
where does the phrase fire in the hole come from
miners, who needed to warn their fellows that a charge had been set