“Minecraft” fans have been going absolutely ballistic in theaters thanks to a wild new trend that’s even resulted in at least one police response … and now some are trying to cash in!

Here’s the deal … “A Minecraft Movie” — the video game film starring Jack Black and Jason Momoa — has some teens going nuts … trashing screenings when a baby zombie rides a chicken, AKA “Chicken Jockey.”

Several videos have gone viral of crowds going berserk — throwing popcorn, screaming, running, blowing airhorns, tossing confetti and even bringing in a freakin’ live chicken! — and now Etsy shops are getting a piece of the insanity.

The e-commerce company has been flooded with chicken jockey gear this week … which includes people selling shirts, cups and toys.

Of course, it’s assumed no one’s REALLY that excited about the scene — it’s just a social media trend for clicks … and it’s been working, with the antics making national headlines.

The teens might think it hilarious, but theater officials are getting pissed … ’cause not only are huge messes being left behind — there are patrons there to see the movie who don’t want the buffoonery. Some theaters have put up signs saying the madness won’t be tolerated.

In at least one instance … cops were called when a go-up went total apes*** for chicken jockey — a result the film’s director Jared Hess told EW was “bananas” and “hilarious.”

Despite being brutally panned by credits, ‘Minecraft’ had a huge opening weekend … so it’s a safe bet the chaos ain’t stopping anytime soon.