Pardon the vulgarity, but performing the dance requires imitating a person trying not to crap his pants. See also Bathroom.
From mother to child, overheard on the streets of Chicago, "Why you do that? I'm no longer going to call you Sarah. From now on you Pissy Baby." See also Bathroom.
Among the symptoms is a burnt sugar smell to the urine, but as funny as that sounds, it can be quite serious. See also Bathroom.
This always struck me as both juvenile and French. See also Bathroom, Scatological.