形容举动偷偷摸摸,不光明正大。
清·李汝珍《镜花缘》第十四回他们大凡吃物,不肯大大方方,总是贼头贼脑,躲躲藏藏,背人而食。”
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Learn the next connected idiom: 贼头贼脑 (zéi tóu zéi nǎo) → 脑满肠肥 (nǎo mǎn cháng féi)
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