The Iraqi could barely repress his glee, and did a kind of jig as he walked across the room.
Some supposedly "Christian" organizations have been running an interesting game for years now--but in 2014, I think the jig is up.
He did not take a step—do a jig—without calculating the odds.
"lively dance," 1560s, perhaps related to Middle French giguer "to dance," or to the source of German Geige "violin." Meaning "piece of sport, trick" is 1590s, now mainly in phrase the jig is up (first attested 1777 as the jig is over). As a verb from 1580s.