Whenever the Madison Square Garden organist played "Let's Go Band" which is a sports arena standard, NY Rangers fans would take the last three notes and turn it into Potvin Sucks! Eventually the tune was banned because MSG didn't want to encourage "crude" behavior. But that didn't stop the fans. The organ was replaced by whistling from the blue seats. (remember those?) At the end of the whistling, the crowd takes its cue.

The

Potvin Sucks Whistle