There are several synonyms for the phrase "hath sex" that are commonly used in everyday language. One of the most popular synonyms is "having intercourse," which refers to the physical act of sexual penetration. Another common synonym is "making love," which implies a romantic and emotional connection between the partners involved. Other synonyms for "hath sex" include "copulate," "bed," "mate," "have relations," and "get laid." While each of these words has slightly different connotations depending on the context in which they are used, they all refer to the same basic act of sexual activity between consenting adults.