billuonicul (bil' - you - on - ah - cul)

n. Used to describe any situation when attempting to pay the bill at a restaurant becomes awkward.

Some common billuoniculs
- When a medium or large sized group of people all put in their cash and it comes up 5 to 10 dollars too short.

- When someone wants to split the bill even when some people got appetizers and/or expensive drinks.