The story
From egg + spoon. Known to be attested since at latest 1759.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A spoon, usually smaller than a teaspoon, which is used for eating a boiled egg from a hole made in the shell; the bowl of the spoon is shaped to make it easier to scoop out the contents of the eggshell. Full definition →
From egg + spoon. Known to be attested since at latest 1759.
Etymology from Wiktionary, CC BY-SA 4.0.