Crackin Share definition Flag Referring to when a persons pants are discustingly low and reveal their butt crack. *Man with low rise, large, britches bends over* "Dude your crackin me! Get some pants that fit!" Crackin by Kelsey"I'mHot"Yes December 17, 2011 0 0 Get merch Get the Crackin mug. Buy Now — $32.95 See more merch