SPERMSPONGE Share definition Flag a slut who lets every guy cum in her, or she swallows every cum shot, and never says no. Ann won't make a good girlfriend because she is a spermsponge, and everyone knows it! SPERMSPONGE by chino cochino August 29, 2006 0 0 Get merch Get the SPERMSPONGE mug. Buy Now — $32.95 See more merch