Sperm pit Share definition Flag A term used to describe a woman who is lacking in any sort of social morals. For example, a slut. Dude, That girl has slept with so many guys she has literally turned in to a sperm pit. Sperm pit by NikNakNoo June 14, 2015 0 0 Get merch Get the Sperm pit mug. Buy Now — $32.95 See more merch