thro-yo Share definition Flag Throat yogurt. Deviation of fro-yo but the act of swallowing one's throat yogurt. Throat yogurt swallow One night after work, John served Rebecca a heaping pile of thro-yo. thro-yo by Chazzzz123 December 27, 2011 0 0 Get merch Get the thro-yo mug. Buy Now — $32.95 See more merch