Sometimes called the quad jerk, or the four legged. When you try to jerk off with your feet, Both hands and fornicate yourself all at the same time.
Paul: “Did you tap Amanda last night?”
Zak: No I got too drunk so I just gave myself the good ol spider jerk.
Paul: Same!
When your jerking off and before blowing your load everywhere call for your mum/dad and before they see what your doing you nut on them. It’s better if you aim for the eye.
My mum just went blind from my Spider-Man jerk