From King Dictionary of Contemporary English
Related topics: Utensils
eggcupegg‧cup /ˈeɡ-kʌp/ noun [countable] egg_cup.jpg DFUa small container that holds a boiled egg while you eat it
Examples from the Corpus
eggcupYou could pack a ton of White Dwarf material into an eggcup.On the upper shelf of the cupboard are four plain white plates, two plain white pudding-bowls, and another eggcup.This time, our eggcup could contain thousands of millions of tons.