costume dance
"did you hear about how sam and jill hooked up? "of course i did, i'm pretty sure it was because they were at that costume dance
a dance where you can dress up in a costume, and look like a slut
""did you hear about how sam and jill hooked up? "of course i did, i'm pretty sure it was because they were at that costume dance" What is the definition of "costume dance"?