Snake hand
The snake hand is used when you try to mislead someone how far you can reach with your arm. By not streching it out fully you wait until the object comes to you and then make a fast move using those last inches you've "saved". A needed condition is that the other person's not able to see the whole arm.
"I stood in the shower and tried to reach the towel outside the cabin. Sarah was there and teased me by holding it very close to my hand. Fortunatly I used the snake hand and just "Snap!", took it from her!"
Snake Hand
Receiving a handjob with gloves of rough texture
"Dude Samantha gave me the snake hand yesterday"