Basically, it is a description of sexual nature that could involve any number of acts: when a dominant person takes a submissive role but still remains in charge while the actual submissive person takes a dominant role but still takes orders.

In its basic, literal sense, it means exactly what it says. The person on the bottom is leading the top, thus technically topping from the bottom.

A day were the top becomes a bottom. January 4th.

Terms used for sex between two women or two men. The top is the pleasure giver and the one on bottom is receiving. They are not the same as dom and sub because even though many bottoms are subs and tops are doms, there are variations such as service tops and power bottoms. Some people are also versatile, which means they both top and bottom, not to be confused with switch.

Top is a giver in sex

Bottom is a reciever in sex

Top or bottom, mainly used for asking someone if they're dominant or submissive.

Referencing to how gay relationships have sex, the top is the one who gives, and bottoms are the ones who receive