Ballgrow Share definition Flag An ingrown hair that doesn't come to the surface and bothers you for about a week. Typically grows under your shaft. Kyle Stan-"bro my dick hair hurts i think a have a ballgrow"Reilly Hughes-" sure..." Ballgrow by Asshole4826 April 28, 2017 0 0 Get merch Get the Ballgrow mug. Buy Now — $32.95 See more merch