The dance caused by running into someone in the hallway and in order to get around one another you both step to the same side, and then to the other until someone stops moving so the other person can get past.
I was walking down the corridor when Wendy and I ran into one another. We ended up doing the Hallway Cha-Cha before we continued on our way.
by Blondie McHottie July 24, 2005
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