The story
(food): From egg + roll. In sense 1, uncertain. In sense 2, a direct transliteration of the Chinese 蛋卷.
Etymology from Wiktionary, CC BY-SA 4.0.
egg roll
Today it means: Chinese-American variant of the spring roll (春卷); food made made by wrapping a combination of chopped vegetables, possibly meat, and sometimes noodles, in a sheet of dough, dipping the dough in egg or an egg wash, then deep frying it. Full definition →