A form of male masturbation which involved standing and vigorously stroking ones cock in the living room with the elbow transforming the arm in a chicken wing!
Hey no more sitting on the hand to creat the affect of a stranger we all do the falcon smash now!
When you are tired of jerking off with your hand and decide to use the crease of you elbow so it looks like you're flappying a wing
BOB: yo dave next time you jerk off don't use your hand totally over rated you need to Falcon Smash that shit
DAVE: how?
BOB: crease of the elbow bro, you last longer and gives you a shoulder workout.