Mealbreaker
N. meel-bray-ker Person who saps the cheer from a lunch or dinner with friends by not partaking of the food, or (if at a restaurant) by ordering water and a salad, then subdividing the bill. Usage: Carmen had forgotten Dana was a mealbreaker when she invited her to her dinner party. While the others made merry, Dani politely refused every course, sipped club soda, and left early.
