"Berserk7" is a user-generated tag for a specific kind of adult content. The word "berserk" refers to a state of losing control, often due to anger or rage. In the context of pornography, it may indicate a scene with intense or aggressive sexual activities. The number "7" could either be an arbitrary number chosen by the creator of this tag or it might refer to a specific series or category within the content. It is essential to note that these tags are user-generated and can vary in meaning based on personal interpretations, so it's recommended to look for more explicit descriptions if needed.