macrovagina means: A vagina with a very large caliber, often displaying a canal depth of magnitude 7 inches. When looking externally at the vulva the vaginal opening appears as a circular hole. The labia minora is usually far apart from the labia majora. A macrovagina may give the impression of a very small penis when intercourse is being had. You can often demonstrate macrovagina by inserting large objects, like Louisville sluggers or cans. (in Community Dictionary, added by Tobías Rubio)