To speak one's mind plainly and directly; to say things very frankly—pointing out what's necessary without beating around the bush.
彼は会議でずばずば言うので、周りは少し気をつかう。
He speaks very plainly at meetings, so people tend to be a bit careful around him.
友人にずばずば言ってもらえて助かった。
I was helped by a friend who told me things bluntly.
面接で欠点をずばずば言われてショックを受けた。
I was shocked when my flaws were pointed out bluntly in the interview.