for the dances that were popular in the '60s, such as the jerk, the pony, the frug, the mashed potato, etc.
It is also a medical condition:
Chorea sancti viti (Latin for "St. Vitus' dance") is an abnormal involuntary movement disorder, one of a group of neurological disorders called dyskinesias. The term chorea is derived from a Greek word ÷ïñåßá (a kind of dance, see chorea), as the quick movements of the feet or hands are vaguely comparable to dancing or piano playing. (Wikipedia)