The moment when a reformed vegetarian, when enjoying a meal, preferably in a 4 or 5 star restaurant, stares at the ostrich steak with garlic mashed potatoes he ordered and feels a sudden pang of horror at his relaxing ethical standards on the prevention of cruelty to animals. Often involves vomiting, and fleeing both the restaurant, and his date in shame.
A: "Yo, dawg, why did Julian do a loop during the main course?"
B. "Dude, he's suffering from some mid-dinner angst, have some understanding, man."