adj. & adv.
adj. 1 a (of a shot) aimed or fired horizontally at a range very close to the target. b (of a distance or range) very close. 2 (of a remark, question, etc.) blunt, direct.
adv. 1 at very close range. 2 directly, bluntly.
[ prob. f. POINT + BLANK = white spot in the centre of a target ]