The phrase "jury-rigged expedient" is often used as a description for something that has been created or put together quickly, without proper planning or resources. Synonyms for this term include "ad-hoc", "makeshift", and "temporary". Another phrase that can be used to describe this type of situation is "stopgap measure" - a solution that is used as a temporary fix until a better one is found. Some other synonyms for "jury-rigged expedient" might include "improvised solution", "quick-fix", or "patchwork solution". These terms suggest a certain level of ingenuity and resourcefulness in finding a solution to a problem, but also imply a lack of permanence or lasting success.