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A moment; a wink; a JIFFY: Hold it, I'll just be two shakes
[1883+; by 1840 in the form a couple of shakes]
ballroom dance appearing in about 1890 in the United States. Its origins are unclear but may include the polka, galop, or waltz. The dance consists of sliding steps to the side in 24 time. It was one source of the fox-trot, which in about 1920 overtook it in popularity, and the term two-step often refers to the fox-trot (q.v.).