Definitions by Jim Fields

Falcon Punch 

An extremely animated and/or self-narrated punch that resembles that dealt by Captain Falcon (of SNES game F-Zero) in the Nintendo video game Super Smash Brothers. Usually accompanied by the screaming of the phrase "Falcon Punch!"

You: (In a streetfight setting) "Falcon Punch!"
Big burly mugger: "Dude, chill."

Falcon Punch by Jim Fields September 12, 2005