Definition
This idiom is used to indicate that people will be punished as a consequence of a negative event.
將有人頭落地（表示會有人受到嚴溊的處罰）
After this major blunder, heads will roll!
出了這麼大的紕漏，有人要倒楣了！
If sales continue to decline, heads will roll!
如果銷售繼續下滑，有人要倒楣了！
There will be repercussions; heads will roll over this scandal.
會有後果的，這起醜聞會讓有人倒楣。