Description of a general sexual position. A "bottom" prefers being penetrated over being the pentrator. He is still called the bottom even if he positions himself above his partner or if he is the one doing most of the moving.
in medical lingo this is referred to as anal receptive sex. Being a bottom carries the highest risk of acquiring HIV and is similar in risk to sharing a needle with an HIV positive injection drug user.
One who enjoys the *passive* role in sex.
Generally a US term for passive. A man who takes, prefers to be penetrated.
In the context of human sexual behavior, especially anal sex among gay men, a bottom is a receptive partner (that is, a partner who is penetrated), or a person who prefers the receptive role. The counterpart is a top. A person who enjoys both topping and bottoming is called versatile or a switch.