What does a ban on food price gouging even mean?

"Harris proposed a ban on price gouging would in theory disallow food and grocery companies from hiking prices an excessive amount over a set period of time, economists told ABC News. They disagreed, however, on whether the measure could control the rise of food prices or if such an outcome is desirable."

It is unclear what this even means. In a NYT article about it, Jim Tankersley writes that “Harris campaign officials did not detail how a price-gouging ban would be enforced or what current corporate behaviors would be outlawed if it were enacted.”

It is already illegal for producers to coordinate so as to fix prices, something Harris also separately said she plans to tackle through harsher penalties. “Price-gouging” is something different than that, but also seems to sometimes be used to refer to a very narrow set of practices like increasing the prices the day after a hurricane while other times being used to refer to any time sellers increase prices during a positive demand shock or negative supply shock, which is kind of how a lot of the economy works (when restaurants increase prices after happy hour, are they engaged in food price-gouging?).