Definition of be lost:
a violent gust of wind; a forcible stream of air from an orifice, as from a bellows, the mouth, etc. Hence: The continuous blowing to which one charge of ore or metal is subjected in a furnace; as, to melt so many tons of iron at a blast
"a blast from a trumpet."
to make a loud noise; to shatter, as if by an explosion
"blast right through it."
blast it; damn it