The phrase "most hashed" refers to something that has been discussed or analyzed extensively. Some synonyms for this phrase include "most debated," "most scrutinized," "most examined," "most analyzed," "most investigated," and "most discussed." These words all suggest a high level of attention and interest in a particular topic or issue. They are especially useful when discussing controversial topics or when trying to emphasize the importance of a particular point or idea. By using these synonyms, you can add greater nuance and depth to your writing or conversation and help your audience to better understand the complexity of the topic at hand.