/ \ DUUUUUUUUDE! SHOCK THE WORLD
( Mostly Visual) With the three mid figures folded down.
Extend the Thumb & Pinky finger out, and shake vigourously, about the radial axis of the wrist.
Driving your vehicle and you stop to let someone make a turn you stop and give him the shocka hand sign
Driving your car someone let you in a spot or make a turn you give him the shocka hand sign, as a way of saying hang loose or thank you, mahalo.