If you were an objective consumer of internet information you would see that there are many meanings. It doesn't surprise me that you chose one about anal sex. How long did you have to look to find that any way? Type this specifically, then scroll through and find it on the 4th line of the 7th page of information on this specific site? Lets be real, you find whatever you are looking for.
Im now starting to wonder if you should heed the quote in your signature.