Taboo slang for vaginal discharge.
"I got a mouthful of her cunt custard."
"She came so hard that she was spraying cunt custard everywhere."
"What did her cunt custard smell/taste like?"
The combination of sperm and the womens juices oozing out of a womans cunt after they have both cum
had to change the sheets after all the cunt custard oozed out of her cunt and onto the sheets