On its 30th anniversary, debunking Teen Wolf’s greatest rumor (yes, it’s the penis thing)

On August 23, 1985, the world was delighted by the antics of an awkward teen who uses his newfound werewolf powers to excel at the wolfiest of sports—basketball. Teen Wolf was a hit for Michael J. Fox, and led to a great many things: a sequel with Jason Bateman, a Saturday morning cartoon show, a secret spinoff movie, a surprisingly decent MTV supernatural drama series, and one of the most enduring urban legends in film history. That urban legend has to do with the end of the film, once Scott Howard has won the basketball game and everyone is excited and races from the bleachers to celebrate. All but one conspicuous onlooker, who appears to be showing off more than simple school spirit. There’s long been an urban legend that at the end of Teen Wolf, one extra flashes his penis while everyone else is celebrating. As described in one of Family Guy’s Star Wars specials:
But is that what actually happens? If one can’t trust H. Jon Benjamin as Yoda, then what else is no longer sacred? Just what is actually happening in the closing shot of this 1985 comedy?