Vanilla Milkshake Share definition Flag Jizzing in someone's asshole and then sucking it out with a straw to then drip it on their face Jason gave Vinny a Vanilla Milkshake when he heard he was talking shit Vanilla Milkshake by Assnoodles September 3, 2016 0 0 Get merch Get the Vanilla Milkshake mug. Buy Now — $32.95 See more merch