eggstraordinary adjective1 •(informal, humorous) Extraordinary, when referring to eggs or Easter.So whether you are in the mood for a frittata bursting with spinach and ham, or an omelette redolent with glazed onions, heat up the skillet, and get ready for an eggstraordinary delight. — 1996 formsmore eggstraordinary · most eggstraordinary