There are a variety of synonyms for the phrase "hath sexual intercourse." Some common terms include "had sex," "made love," "slept together," "hooked up," "got intimate," and "copulated." These phrases are often used as euphemisms for talking about sexual activity, especially in polite or public conversations. However, it's worth noting that some of these terms may carry different connotations or nuances depending on the context or relationship between the people involved. As with any kind of communication, it's important to be clear and respectful when discussing sex and sexuality, and to consider the impact of our language on others.