Xtime is a shorthand or slang term used in the adult entertainment industry for "anal." This term is often used to quickly and discreetly refer to anal sex, as it is a popular and widely recognized category within porn videos. It's important to note that this term might not be familiar to all viewers, especially those new to adult content. Therefore, using more explicit terms like "Anal" may help provide better clarity for the audience.
In summary, xtime refers to anal sex in a porn video tag.