What is the meaning of Point_blank?

The distance between a gun and a target such that it requires minimal effort in aiming it. In particular no allowance needs to be made for effects of gravity, target movement or wind in aiming the projectile.

Blunt, outright.

Horizontally (as the angle at which a projectile is launched); directly or straight (at the target).

Directly; bluntly; without pretense or caution.

Source: wiktionary.org