Acronym for Small Dick Humiliation, it is seen as an action when someone is described or laughed because of their small dick. This is also a common disease for people with micropenis, if you have a small dick and is shamed by others, you have SDH.
Man #1: Your dick is so small that even a pinhole is too big for you
Man #2: I guess I just got SDHed and now I have SDH
