bumfluff

noun
🔊/ˈbʌmflʌf/
🔊/ˈbʌmflʌf/
[uncountable] (informal)
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  1. the soft hair that grows on the upper lip and chin of a boy, as his beard begins to grow(男孩开始长胡子时上唇的)茸毛,小胡子Topics Appearancec2