The dance that is done when one has to poop, but has nowhere to release aforementioned fecal matter. Dance moves include hip gyrations, hands on stomach, and the ever popular why-me-why-now jig. If you're really lucky, you can see intense face contortions.
Man 1: What is wrong with that guy?
Man 2: He just ate spaghetti and drank milk, so I reckon he's hula pooping
Man 1: That sucks, considering the nearest toilet is miles away.
The beer one drinks right before bed.
Man 1: I really need to get to sleep...
Man 2: Here, drink this lullabrew, it'll put you right to sleep!