Fast dance done to jazz or swing music
Energetic American dance that evolved from the jitterbug, popular in the 1940s and 1950s; a forerunner of rock and roll.

ETYM Cant or Colloq.
1. A quick succession of soft sounds.
2. Glib and rapid speech; esp., any form of rapid speech associated with the profession of comedians or salespeople.
3. (Archaic) The dialect or slang of a particular social group.

A voluble line of often extravagant talk; pitch
Plausible glib talk (especially useful to a salesperson); SYN. patter, line of gab.