From Longman Dictionary of Contemporary EnglishEaster eggˈEaster egg noun [countable] 1 British EnglishDF a chocolate egg bought or given as a present at Easter2 American EnglishDECORATE an egg that has been coloured and decorated to celebrate Easter
Examples from the Corpus
Easter egg• The pool will be opened on Sunday and there will be an Easter egg hung at 2.30 p.m.• Planned events include a fantasy role-playing war games day, an Easter egg hunt and motorcycle display.• Otherwise it will be like an Easter egg hunt.• Julius danced soberly with his Easter egg. 