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A person, especially a politician, who (habitually) changes his or her opinion or position.
Late 19th century; earliest use found in The Chicago Tribune. From flip-flop + -er.
雅致网英汉双解词典包含236457条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。