Left over sperm or semen in someones asshole from a prior fuck that is re-fucked by another dick and thus becomes overheated and burnt. It's odor is that of burning flesh and feces put together.
Bob: This girl, Kim Cumbox, farted on me while we were fucking and it smelled horrible!
Fred: Haaa! You fucked her!!?? That ass is FULL of Burnt Sperm! You better take a shower!
by [Ball Squeezins] March 01, 2008
5 Words related to Burnt Sperm

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