seed-gasm Share definition Flag A seed-gasm is a cumgasm that a guy has when he blows his load up another dude's asshole. I had a seed-gasm when I shot my shit up the asshole of that new cadet! seed-gasm by eda-skip December 11, 2021 0 0 Get merch Get the seed-gasm mug. Buy Now — $32.95 See more merch