There are several synonyms for the phrase "have the carpet," which means to have an advantage or a winning edge. One such synonym is "hold the upper hand," suggesting that a person or team is in a dominant position. Another synonym is "have the edge," which implies that someone has a slight advantage. "Be in the driver's seat" is another related phrase, expressing that someone is in control of a situation. Additionally, "be on top," "have the upper crust," and "have the uppermost hand" are all synonyms for "have the carpet" that convey a sense of superiority and being ahead in a competitive setting.