Hit me up

I've just now realized that there seems to be a marked decline in the use of the phrase “hit me up.” At least in my circles, that is. I’ve never been one to keep up with the parlances of the times, but this phrase is too curious to ignore. Upon reading or hearing it, I’ve noticed myself subconsciously clenching hands into fists. Not because I find myself wanting to administer a swift uppercut to the jaw in response to this idiotic idiom. But because I want to give the requestor exactly what for he asks. This, incidentally, seems to be a swift uppercut to the jaw.