Runtz Share definition Flag Really Dank ass weed. Hybrid of zkittles and gelato that's really fruity. Sometimes use as a general term for real loud ass kush I'm smoking on runtz and you still smoking mid, I call my pack trix 'cept this shit ain't for kids! Runtz by Big Draco October 28, 2019 0 0 Get merch Get the Runtz mug. Buy Now — $32.95 See more merch