Macrophallic is a term used to describe someone who has a large penis. However, there are many other words that can be used as a synonym for macrophallic. Some other popular words that convey the same meaning are well-endowed, endowed, hung, big dicked, and large member. In addition, there are numerous slang terms that are used to describe a big penis, such as anaconda, python, monster, and hog. While all of these terms are synonyms for macrophallic, it is important to remember to use them appropriately and respectfully. Overall, there are many words that can be used to describe a large penis, but it is important to choose those that are appropriate for the context and situation.