slit spit

Generic term for ejaculate or other fluids produced by the female genitalia, usually during sexual arousal.

Joe - "So did you manage to get a ride out of that slapper you were chatting up last night?"
Seb - "Yeah, the dirty slut virtually flooded my bed with slit spit"
Joe - "Hmm, I think I can still see some smeared round your mouth actually".