Spider-Man Hand 

Positioning of the hand where the middle and ring fingers are inside the vagina, curling back toward the palm, which is against the labia and clitoris.

The key when using the Spider-Man Hand is to bring the middle and ring fingers toward the palm versus overly aggressive flicking of said fingers inside the vagina.

Spider-Man Hand by anonymous September 6, 2020

Spiderman Hand 

Manual stimulation of the clitoris internally and externally wherein the middle and ring fingers are inserted into the vagina while the index and pinky fingers rest against the lower labia/inter thighs and the palm against the upper labia and clitoris. The middle and ring fingers are then curled toward the palm in a trigger/hook motion.

His Spiderman Hand game left me weak and shaking.

Spiderman Hand by anonymous September 6, 2020

spiderman hands 

jacking off and cumming all over the back of your hand.

chad told andrew and nick that last nigh he jacked off due to lack of pussy from ladys and got it all over the back of his hands which is commonly known as the spiderman hands

spiderman hands by Nick54 November 12, 2006