an invisible wall one hits when one has reached the point of study material saturation. All further attempts to study are futile and aimless browsing of the internet persists unabated.
After hitting the study wall, all I could do was look at rage comics on reddit until I woke up the next morning covered in piss.
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi