When you are riding a pony or horse and you cut other riders off, go too quickly, turn to sharply and ride like you are totally mad.
Me and my pony gallop round like me have pony rage.
by isufferfromponyrage May 15, 2011
The confined, built up energy due to anger or frustration, that lies in the deep part of your mind allowing you to exert an inhuman amount of force or concentration on a given activity.
Last night at the hockey game I tapped into my pony rage and checked this guy really hard.
by Matt Landis December 15, 2003