I wonder sometimes how new phrases come into the general vocabulary. One person uses it then it shows up in a song, movie or tv show, and eventually then everyone and their brother uses it (sometimes even your parents....shocking!) Recently I noticed in one song the phrase "it ain't trickin if you got it." Now as I listen to other hip hop / R&B songs, I've heard it in a few other songs. Will this phrase jump genres to country? Maybe not, since it's usually used in reference to black AMEX cards and not in regards to one's pickup truck. Check out www.urbandictionary.com where you can create a definition of your own for your favorite new word!
But every once in a while a pop music / hip hop phrase does go over to country...exhibit A, The Lost Trailers and their song, "Holler Back."