"Squeaky wheel gets the grease" means that those who complain or raise their concerns often get the attention and action they desire. Some synonyms for this phrase include "the squeaky wheel gets the oil," "the most vocal get the attention," "the complainer gets the remedy," and "the noisy receive the response." All of these synonyms imply that those who speak up and make noise are the ones that are heard, and in some cases, rewarded. However, it is important to note that sometimes being the "squeaky wheel" can also have negative connotations, as it can be seen as excessive or annoying behavior.