a frog punch differs from a regular punch in that the second knuckle of the middle finger is extended. A common threat of the frog punch is said by stating "knuckle out".
by MeanAssPenguin September 17, 2007
by TheOnlyMikeZ April 16, 2010
An extremely powerful offensive maneuver only used by the hardest of core. A special punch delivered by extending the second knuckle of the middle finger outward to a point, while clenching the fist. Aim for the throat for devastating results the likes of which your opponent, punk-assed bitch that he/she is, shall never forget.
by renode September 24, 2007