With modifying word. An egg with a specified number of yolks, as "double-yolker", "one-yolker", "triple-yolker", etc.
Mid 19th century; earliest use found in Milwaukee Daily Sentinel. From yolk + -er.
英汉双解词典包含464360条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。