get final say

To have the final authority to decide what happens or how something is done. As the editor-in-chief, I get final say on the layout for every issue. The department heads all contribute to creating the strategy, but it's ultimately the CEO who gets final say. If we disagree about what course of action to take, then who gets final say?

get the final say

1. To express the final point or opinion in an argument or discussion, especially in a way that decisively or conclusively ends it. Everyone started shouting, trying to drown out the others so they could get the final say. David is so smug, always making a point to get the final say in every debate. Shouldn't the professor get the final say on this issue? She's the expert, after all.

2. To have the final authority to decide what happens or how something is done. As the editor-in-chief, I get the final say on the layout for every issue. The department heads all contribute to creating the strategy, but it's ultimately the CEO who gets the final say. If we disagree about what course of action to take, then who gets the final say?