After all, the only reason it's such a perfect insult is because in your primitive monkey brain sex and access to it is the most important thing that exists in life. You cannot fathom a world where people actually value things like creativity, honesty, or character above their base impulses because you could never see any trait or characteristic being more important than rubbing your genitalia on someone else.

Congratulations, you play yourself every time you try to use it as an insult oblivious to the fact that every time you do you tell the world that you are simply unable to rise above the mental priorities of cavewomen/cavemen and you'll probably never realize this on your own. You'll certainly deny it regardless, guess why.