They’ve been disbanded!

Columbia University has drummed out of existence its famously irreverent marching band — known for its phallic formations and cheering for the other team during home games.

Administrators at the Manhattan Ivy League institution warned the renegade band last semester that it needed to apply to become a recognized student group if it wanted any more funding, instead of operating under the auspices of the athletic department.

Skeptical band members say the move was payback for them hitting the wrong notes with higher-ups.

“We are not perfect, but we always try our best to speak truth to power, punch up as much as we can, and I just don’t think that’s something Columbia wants to hear,” said the band’s travel coordinator, Isabel Sepulveda, 20, to The Post on Friday — the eve of the school’s first home football game.

The band, for which members don’t have to audition, has been a thorn in the side of administrators for years.

In addition to the off-color formations and cheekily cheering on their school’s rivals, the 45-person unit band played CeeLo Green’s “F–k You’’ tune outside Trump Tower in 2016 and knelt during the national anthem at football games last season.

The bawdy music brigade also famously instituted “Orgo Night,” which involved popping up at the campus library with instruments in hand — on the eve of organic-chemistry finals. Orgo is a nickname for organic chemistry.

When campus higher-ups clamped down on the noisy prank, the band’s website read, “Since then, we have performed directly outside the library to make sure no one misses out – especially the Vice Provost.”

The band defiantly waited till this semester to apply as an independent group, but the school said they were too late. It nixed their already severely reduced budget and banned them from official sporting functions.

Trombone player Quentin Rubel, 20, said, the school’s action strikes at the very heart of what it means to be a college student.

“The band has always been a very outspoken source of counter-culturalism on Columbia’s campus,’’ he said.

But the school is just as defiant. It is tapping outside entertainment to keep fans engaged during games and creating a new spirit organization to be overseen by a faculty director, band members said.

“We don’t like it,” a Columbia basketball player told The Post. “[Band members] represent a culture and support for the team, and they have the ability to change the atmosphere.”

If the band members show up at Saturday’s game brandishing instruments, they’ll be disciplined, the school warned.

The dissident musicians plan to play music on campus in advance the tilt against Georgetown and will ditch their instruments before heading to the game, members said.

Columbia said it was the band who were ultimately out of tune for failing to follow procedure.

“CUMB failed to submit an application for recognition that met the deadlines of our student governing boards, bringing us to the current situation,” the school said in a statement.

Additional reporting by Amanda Woods