Dhincline Share definition Flag An insult that is used to mean someone is less than the one who gave the insult. Comes from the mathematical term Dincline meaning less steep. You're such a Dhincline Cindy because you date your cousin! Dhincline by Dhincline March 20, 2020 0 0 Get merch Get the Dhincline mug. Buy Now — $32.95 See more merch