In trying to describe a late-night Halloween screening of “The Rocky Horror Picture Show,” one can have a hard time finding the right words. And often, the words one finds end up being the kind you can’t quite say in polite company.

On Monday, The Blue Note hosted its 34th screening of “Rocky Horror,” the classic cult film that tells the erratic tale of a newlywed couple’s night in a mansion owned by a mad, transsexual scientist.

As is fitting for such an eccentric film, screenings tend to be far more festive than your average trip to the movies.

The truly special thing about “The Rocky Horror Picture Show” is how much it relies on audience participation. Viewers come dressed as the film’s scantily clad characters, many in drag. On Monday, men and women alike arrived at the venue flaunting high heels, corsets and obscene amounts of makeup.

The Blue Note’s audience is led by the delightfully crass emcee, Mark “The Master” Chambers and is encouraged to sing along to the songs, shout over lines in unison, and toss confetti and other such things toward the screen as certain lines are dropped.

Prior to the show, MOVE asked a few of the audience members what brought them to such an event.

“Everyone has an inner ‘freak,’ and this is a good time to let it out,” freshman and veteran attendee Lily Fitzgibbon said. “It’s weird, but not normal weird. It’s _weird_ weird.”

One moviegoer described the screening as “non-judgmental fun,” which summed up the mood in the venue as everyone waited for the film to start.

After Chambers’ energetic and raunchy introduction, he went on to explain a few rules of the night’s festivities. However, instead of the usual “keep your hands to yourselves” routine, he phrased it in the following manner.

“Touching may be inappropriate, but we have to keep life on this planet some way, don’t we?” Chambers said.

And on that note, the movie began.

The audience sang, shouted, danced and cursed its way to the end of the show. As they made their way out of the theater, nearly all were smiling and laughing.

Freshman and “Rocky Horror” first-timer William Savaiano had a rather hard time putting the event into words, as many so often do, but eventually settled on these two: “homoerotic adventure.”

Though a brief description, one would be hard-pressed to challenge it.

If you weren’t lucky enough to see this year’s screening, don’t worry: The show is an annual event. And to those of you that did see it, don’t forget Chambers’ colorfully phrased words.

“I want to smell every one of you here next year,” Chambers said.