Meanings of informal dancing in English

The entertainment concluded with informal dancing, music for the same being furnished by an orchestra which was in attendance.

And my daughter begs me to remind you and your young officers that there will be informal dancing every night.

There were successions of informal dancing parties, lunch parties, and card parties during the penitential forty days, and then came the post-Lenten festivities.

"This," said she, "was sometimes used as an accompaniment to such informal dancing as was indulged in outside the halau."