The phrase "...or bust" is commonly used to indicate an "all or nothing" scenario. However, there are a number of synonyms that can be used to convey the same message. For example, one might say "win or lose it all" or "go big or go home." Other options could include "sink or swim," "bet the farm," or "put it all on the line." Ultimately, the choice of phrase will depend on the context and tone of the conversation. Whether in business, sports, or everyday life, it's important to remember that taking risks can lead to great rewards - but sometimes, you really do have to go "all in."".