Prom Night Dumster Baby ("Family Guy") Question

I was watching a rerun of the Family Guy and they do a song called “Prom Night Dumpster Baby.”

It looks like this is based on something, but I can’t figure out what? Is it a movie or something they are parodying? To me prom night is a night kids have sex, not have babies.

I know I’m missing something but what is it?

i believe it’s based on a true story actually, ff a girl who gave birth during her prom and left the baby in the bathroom (not a dumpster)

Yup, delivered in the bathroom at the prom and dumped the baby in the trash before returning to the dance - Melissa Drexler.

Not sure if a teen’s ever dumped a baby in a dumpster on prom night, but there’s been at least one infamous case of a girl who gave birth in the toilet then returned to the dance floor. Apparently no one knew she was pregnant (perhaps her included). She got 15 years for aggravated manslaughter and served three.