The hanging, draping, or stringing of cum on a girl's (or guy's if that is how you role) eye brow to their cheek.
Other acceptable placements.
Chin to neck, shoulder, or chest.
Eye brow to to nose or eyelash.
Nose to lip, cheek, or chin.
Girl: "Oh no, its dripping onto my chest!"
Guy: "Let it go babe. You just got a cobweb".
Girl: "I've been cobwebbed!"