Well, I think I would define as when one's "need" for sexual pleasure interferes with their daily responsibilities. That happened to me when I was in my 20's (I'm 55 now) in that I was always masturbating and seeking sexual highs. It interfered with my jobs and with my relationships because, instead of taking care of those, I was filled with lust and sexual highs.
I got married when I was 31 and I still wasn't satiated and that caused problems in my marriage, although we stuck it out for 13 miserable years.
I met my current wife 6 years ago and now I am completely well and happy, although I presume age has played a large part in my now, under control, sex drive. My wife and I have sex only 2-3 times per week and we are very much in love and very fulfilled together.
I created this thread out of a genuine interest in other's experiences but I probably should have posted it in another sub-forum. I'm new here and I hadn't considered the plethora of dudes likely asking the ladies questions for the purpose of coming up with, as another put it, "wank fodder".
Is it possible for a moderator to move this thread to a more appropriate forum? Thanks.