Definition
To indicate a complete lack of concern or interest in something.
毫不在乎；一点也不担心
She doesn't give a toss about what others gossip about.
她对别人的闲言碎语毫不在意。
I told him I might quit, but he didn't give a toss.
我告诉他我可能会辞职，但他毫不在意。
He doesn't seem to give a toss about his exam results.
他似乎对他的考试成绩毫不在意。