Seussing Share definition Flag The act of making up random words that attempt to, or do, rhyme with previously stated words. Girl: "What's up?" Guy: "Not much, tizzuch" Girl: "The fuck?" Guy: "What? I like Seussing" Seussing by UnPuNiShEdAnGeL June 18, 2011 0 0 Get merch Get the Seussing mug. Buy Now — $32.95 See more merch