When your man scratches his sweaty balls and then quickly proceeds to swipe it across the upper lip of his woman, leaving behind an abundant amount of moisture.
I was gravy swiped by my boyfriend and had to go shower. It wasn't enough, nothing will ever be enough.
verb; to produce an in-and-out flow of drugs and blood in a hypodermic stringe chamber after the "register". This mixes the blood-drug solution prior to completing the injection, ensuring a uniform blend of drug solution into the vein, thus producing a pleasant and even "rush" or "flash".
Juan: "You got a register".
Jose: "OK, I'll mix the gravy and slam".
Biscuits and gravy is the action of getting a large group of people together and drinking copious amounts of alcohol, to the point of vomiting. Once everyone has puked in the same pile, they proceed to have an orgy on the vile-pile.
Marsha lost her virginity to 3 men and 4 women after the guy she liked invited her to a biscuits and gravy party.