semen sponge Share definition Flag A semen sponge is basically a girl who sucks alot of cock and swallows, as a sponge sucks up liquid, a semen sponge sucks up semen. "Damn olgas a semen sponge" semen sponge by edza April 30, 2007 0 0 Get merch Get the semen sponge mug. Buy Now — $32.95 See more merch