CBS / YouTube

Stephen Colbert Spilled A Whole Cauldron Of Harry Potter 'Spoilers'

The 'Late Show' host is no Muggle.

It’s been nearly a decade since the last "Harry Potter" book came out, but author J.K. Rowling is still leaking tidbits about her magical universe.

Recently, Rowling revealed that the word “Muggle” is only used in the United Kingdom -- and that American wizards have their own term for those born without the ability to practice magic: “No-Maj,” short for “no magic."

Rowling also said that we’ve all been pronouncing “Voldemort” wrong all this time.

Not to be outdone by the creator of the "Harry Potter" universe herself, Stephen Colbert took the opportunity to leak some “spoilers” of his own -- including who Harry Potter once drunkenly made out with, who the American Voldemort is and how the Hufflepuff Quidditch team used to cheat.

Watch Colbert spill his cauldron of secrets in the clip below.

The film adaptation of Rowling’s extended universe cut "Fantastic Beasts And Where To Find Them," starring Eddie Redmayne, will be out next year.