Based on the term "skeet
", which is defined as the act of ejaculating on a partner after sex. Skeet slapping is the act of slapping a sheet, piece of clothing, or other absorbent material down on the skin that has been skeeted upon. The semen then acts as an adhesive, holding the material to the skin and leaving even bolder evidence of one's conquest.
"Man, she said she wouldn't swallow, so I busted a nut on her forehead and skeet-slapped her with my sock."