when you really need to shit and your running to the toilet, but you is tryin to hold it in so you are kinda straining which causes walkin/running funny in a kinda dance-like way. which is what we call the dance of the mad shitter.
causes include mum's caserole, prunes, curry.
normally occurs when one has the runs.
i need a shit so bad i could dance the mad shitter from devon to dundee