A sexual act performed during, oral, anal or vaginal sex, when a male pulls out just before ejaculation. Then he releases semen on her face and then slams a screen door, or any object for that matter, in her face. Pillows, blankets, walls, doors etc. can be used or anything that when pulled away creates a "webbing" effect.
She took that Spider Mask like a champ, I can still see the grid from the screen door on her face and there was webbing for days.