This is bugging me for quite a while.

In which episode is Emmett saying "Roshambo?"

I never heard it and I watched the show like 1 bazillion times. But my sister C. did, who watched it once. Of course she can't remember the episode nor the season, pffft. She's not a crazy fangirl like me, sometimes I think my parents found her under a rock, srly! But don't worry, we love us bunches anyway!

So does anyone know this, did he really say it or does C. have a hearing damage ;)?