The missionary position or man-on-top position is a sex position usually denoting the act in which a woman lies on her back and a man lies on top of her while they face each other and engage in sexual intercourse or other sexual activity. Though commonly associated with aspects of heterosexual sexual activity, the sex position is also used by gay ...
[n] - a position for sexual intercourse
noun a position for sexual intercourse; a man and woman lie facing each other with the man on top; so-called because missionaries thought it the proper position for primitive peoples