Quick and dirty is an informal phrase used to describe something that is done quickly and without much attention to detail. There are a few different synonyms that could be used in place of this phrase, depending on the context in which it's being used. For instance, "rough and ready" is a good alternative when describing a quick, low-quality job that gets the job done. "Slapdash" is another option that refers to quick, careless work. "Hastily cobbled together" or "thrown together" could also be used to describe something that was done quickly without much attention to detail. Ultimately, the choice of synonym will depend on the tone and context of the sentence.