I may have to try this sometime. I have a number of songs that are kind of the opposite - no actual chorus until the very end and then it's sometimes just a single line. I call it the punchline, like if it was a joke.
I have a lot(!!!) of songs that are a basic verse-chorus-verse-chorus... pattern but the "choruses" are all instrumental. In many of these the last line of each verse is the same, and sort of does what a vocal chorus might.
Ive got a couple songs that do have a vocal chorus, but I only sing part of it each time it comes around. So I'll sing just the first line the first time, then right back into the verse. Maybe the second time we sing it all the way through, third chorus is instrumental, and at the end we repeat the chorus a couple times.
Course, nobody actually listens to any of it...