If you want to describe your school dance with an impressive adjective, you can call it a terpsichorean party. Terpsichorean describes something that has to do with dancing.
You might tell your friend that you're planning something terpsichorean for the big camp talent show. He may have no idea what you mean, but you'll know you're planning to dance. The word terpsichorean comes from Terpsikhore, one of Greek mythology's nine muses. Terpsikhore literally means "enjoyment of dance," and she was the muse known for ruling over dance while playing her lyre.