adj. when loosing in the Olympic Gymnastic event then calling the opposing side of Cheating or Cospiracy
Person1: uh oh Liukin got silver again those Chinese probably cheated
Person2: Shut up with your sour grapes comment.
Person2: Shut up with your sour grapes comment.
by PhelpPhelp October 18, 2008
Get the Sour Grapesmug.