Jamaican teammate Warren Weir never got close to Bolt's world-leading mark of 19.66 seconds, but crossing .13 seconds later for silver still left him enough time to join him in a reggae dance to Bob Marley's "Three Little Birds."
"The energy was great tonight," Bolt said. "The crowd was into it."
Curtis Mitchell of the United States took bronze in 20.24 but was never in the hunt for gold.
Now Bolt will go for his fourth triple gold at a major championship when he joins the Jamaican team for the 4x100 relay Sunday.
"It should be even better," Bolt said.The wealth of Jamaican sprinting is such that they might well sweep their American rivals in unprecedented fashion, after Shelly-Ann Fraser-Pryce clinched a similar 100-200 double and also has her final relay late on the closing day of the championships.
