competitive eating etiquette
When someone eats with reckless regard usually involving and not limited to ignoring errant food particles on face and, if applicable, in facial hair, shoveling food into one's mouth before completely swallowing the previous bite, utilizing every finger on every hand, and uncontrollable stares from spectators. Throwing up results in an automatic disqualification.
That guy always comes in here with his competitive eating etiquette like no one else comes to McDonald's. Show some class.