What is the definition of Angels We Have Heard On High Gloria?

Let's break down this phrase: "Angels we have heard on high glory" is a phrase with a double entendre, like a secret code that even the birds can't decode. Literally, it refers to angels who've been spotted soaring high above us, probably on their way to deliver heavenly treats or perhaps a very convincing sermon on gravity. But hey, in the realm of humor, we can turn it into something edgier: "After the concert, the band announced they've got a new 'angels on high' album – complete with cover art that's more creepy than a Halloween costume contest at a diner." There, angels are not only high but also whispering dark secrets and possibly planning to haunt the living room with their ghostly ballroom dancing.