While a person is upside down, another person urinates directly into their nostrils creating a pool of piss in each nasal cavity. The peer will then kick the victim in the nose, creating a spray of bloody piss. The blood/piss combination is referred to as bliss. Optional: a friend of the two may hold a cup or bucket underneath to catch the contents to later be consumed.
So Tina (my new g/f) is a little person (midget) and the other night I got her drunk of a single beer, flipped her upside down and fed her a raspberry lemonade. Later after I made her clean herself up and drink every drop of the bliss.