The art of concealing one or more rusty nails inside of a baked good, such as pie, followed by smashing the pastry into a friend or foe's face causing them excruciating pain, via nails in the face, while bringing wholesome joy to all witnesses. (Remember, it has to be a pastry/baked good or it wont work)
My grandmother baked an apple pie when i specifically asked for pumpkin pie. In a violent act of vengeance i grabbed rusty nails from the garage, stuck them in her apple pie and pie shanked that bitch. (The phrase pie shank is used in the past tense in this definition is used in the past tense)
by Merik Pie August 5, 2010