What is another word for went flat?
Pronunciation: [wɛnt flˈat] (IPA) 
The phrase "went flat" refers to something that has lost its energy, fizz, or vitality. There are several synonyms for this phrase, including "lost its sparkle," "died down," "fizzled out," "deflated," "weakened," "waned," "diminished," "declined," "subsided," "drooped," and "sagged." These synonyms can be used interchangeably depending on the context in which the phrase is used. For instance, "lost its sparkle" is a fitting synonym for describing a once-exciting party that has died down, while "deflated" is more appropriate for describing a tire that has lost its pressure.
