When the vagina and anus are one hole. This can be a birth defect or can be created through surgery.
Dood, I slipped her panties down and she only had one hole down there so I had vaganal sex last night.
by Eggman November 24, 2004
When a man has sex with a woman who has a vaganus and so is having both anal and vaginal sex at the same time.
by Eggman November 24, 2004