Here are some things that Dancer's say that sound really weird to non dancers:
"Just a minute, I need to break my shoes."
"Can you re-mark my legs?"
"My best point area is at the 8th position"
"Have two left feet"
"Box it girls"
"Pull you're core's tight"
"Push the wings"
If you know what they mean, you either are a dancer or know a dancer.