Whom-mate Share definition Flag The word to use instead of "sibling" to emphasize that is all we have in common or to do with each other now. "No I don't have any brothers and sisters, I cut contact with them. We are only Whom-mates" Whom-mate by 2ndpeehole January 29, 2023 0 0 Get merch Get the Whom-mate mug. Buy Now — $32.95 See more merch