No, this isn't the Devo post, but apparently Phish fans and jam band denizens are whipping it good. From Andy Bernstein's (no relation) review of Trey Anastasio's recent Carnegie Hall performance:

So what was it like outside? A raging nitrous scene. It began well before the show and popped up again right after, continuing unabated for at least 45 minutes after the “If I Could” encore. This wasn’t the sort of back alley, slightly down-low nitrous scene we’re used to. It was completely out in the open, with hawkers walking around with 4 balloons in each, right on the corner of W 57th and 7th Ave.

There was no shortage of Phish fans in sport jackets sucking it all up.

I didn't even know people still did Whippets, or that drug dealers could sell them out in the open already in balloons. If I can accurately harken back to a very stupid evening in the 10th grade, they make your voice low and make you fall over and feel exactly like that hyperventilating trick we used to do at summer camp. I don't think I quite get how that helps one experience the music, but it's an odd trend.