Geez, someone needs to get laid.
I hear this a lot...
If you haven't had sex yet, it's not a huge deal, except the anticipation. Though as a guy, blue ball syndrome gets much worse into your 20's, and more frequent. Heck I was a virgin until 27, by choice as well. Eventually I just said f-it to the notion of waiting until marriage.
If you have, well, then you'd know it changes your whole dynamic after having sex for the first time. Your body and brain chemistry alters to desire sex a great deal more than you ever did prior. It also means you channel that energy more effectively into other avenues, and is one reason some people hold off on sex to function in other ways...however withholding for an extended period causes a certain frustration and anxiety. This eventually builds and causes all sorts of problems, such as irrational anger, and actually enhances psychological issues and physiological issues. It's also intriguing to note that someone who has sex doesn't actually...LOSE energy, as so many myths love to claim, in fact it actually builds up even more energy...I find anyway. 12 hours of sex...we're both tired, we rest for 2 hours, bam, whomever the girl is and I are energized and ready to handle anything...and eat about 1/10th the food I'd eat otherwise, and that lasts about 48 hours so long as we're around one another (meaning if I want to go out, have fun, or stay in and have a marathon of a sort...yeah, that's definitely possible), and 12~24 if I have to go to work. I also find I focus better after the fact. Though that only works when with a girl, and seems to be tied to emotional bonds, the stronger they are, the more energy you both end up having, at least in my experience. Alone, no, it only triggers the other element of having sex: release of sexual frustration, and all the problems that go along with it.
Thus it's an old adage, and a great way to poke fun at someone who seems irrationally snitty, angry, or grumpy...especially when it's usually the case.
Of course if you're in a relationship and your lady isn't putting out...time to move on. No relationship can handle sexual suppression, and it's actually damaging to the psyche, soul, and sense of bond both have with one another. Case in point...the best and most meaningful relationships, even in their old age still do it, and yes, they do it more than once a week. I've met a few couples like that. Spry, happy, spunky, never bitter, and always child-like in the amount of curiosity and energy they possess. Unlike their opposite, the near defunct and dead couples who simply stopped, and become bitter, resentful, aggressive, and grumpy, and often shake canes at people, call the police for the most minor of disturbances, and you find their kids hate themselves, hate their parents, and their grand children are druggies one stop from death's door, all simply due to their grandparents being idiots about the nature of reality and how to stay a happy couple. Yeah, I serious, sex and happiness, in a relationship, is EVERYTHING. They're intrinsically tied.
Wilhelm Reich figured this out ages ago as well, that most of the anger, frustration, and mental disturbances occur because of built up sexual frustration. I should point out he's the only therapist with a 100% breakthrough rate, even if his methods and motives were questionable, he at least hit on a key element missing in the lives of so many people. However it's deeper than that, one must then learn about the deeper self, the hidden elements of self, then learn to define oneself as you wish to...but that's another story, because that frustration can be channeled into very disturbing, disgusting, and horrific ways, and that only an individual can fix, but first the trigger must be addressed, then the history buried deep in the mind that led to that sexually frustrated life, which is often something the parents did or did not do...and then addressing your own darkness created by you as a result of these compounded problems.
Anyway, far more information than you probably dreamed of, lol. TMI guy strikes again!
Now a quote of wisdom:
"You people that don't smoke, what do you do when you finish (deleted)ing, eat jelly beans?"- Redd Foxx.
"The Lord created the fart, then put a smell in it so the deaf could enjoy it!"- also Redd Foxx