The phrase "slapped together" is often used to describe something that has been hastily or carelessly assembled. Synonyms for this term include "thrown together," "cobbled," "jerry-rigged," "pieced," or "crude." "Hastily constructed," "impromptu," "ad hoc," "make-do," and "jury-rigged" are also terms that convey the same sense of something being put together quickly, without much thought or attention to detail. These words are often used to describe makeshift solutions, shoddy workmanship or hastily conceived ideas. Whether used in reference to a structure, a project or a plan, these words indicate that little time or effort was taken to create something that is truly worthwhile.