New York Rangers: "Potvin sucks!"
In 1979, Denis Potvin of the rival Islanders injured Rangers center Ulf Nilsson with a massive hit (that Nilsson said was legal). Each time Potvin touched the puck that night, and every night he played the Rangers for the rest of his career, he heard “Potvin sucks!” Fans then started doing it when he wasn’t around, chanting the line during the organist’s rendition of “Let’s Go Band.” But Madison Square Garden banned the song to discourage “crude” behavior, so Rangers fans took matters into their own hands: Now, fans whistle the tune in the arena to prompt the cheer several times every game.