Falcon Punch is a move used by Captain Falcon. It became a very popular move in the Super Smash Bros. series around 2007 to 2008, but is most known for the time when Captain Falcon used it to defeat Black Shadow in the anime series. The voice of Captain Falcon yelling "Falcon, PUNCH!!!" is often used as a sound effect for punches.It has also been made into the game Yandere Simulator as an easter egg.
Falcon Punch is what Henry Stickmin does, it's GOOD. :)