cephalorectal inversion Share definition Flag The act of having one’s head up their ass. During rainy weather, people driving in this area tend to suffer from Cephalorectal Inversion. cephalorectal inversion by MissChaoticBliss February 17, 2018 0 0 Get merch Get the cephalorectal inversion mug. Buy Now — $32.95 See more merch