The Eiffel Tower is a slang term that has different meanings depending on the context. Here are the different meanings of the term:

• Sexual Position: The Eiffel Tower is a sexual position that involves three people, one person is either on all fours or lying on their back while two other partners are standing or kneeling. One partner performs oral sex on the partner standing in front, while being penetrated by the other partner from behind. Then the outside partners high-five or touch hands above the base partner.

• Toilet Prank: The Eiffel Tower is a prank where a group of people defecate in the same toilet consecutively without flushing until the pile of feces peaks above the rim.

• Mathematical Term: The Eiffel Tower is a mathematical term that means "to the third power".

It is important to note that the sexual position meaning of the term is the most common and widely known.