黃口 huángkǒu fledgling bird Origin Definitions Defs Strokes Stroke Words Sentences Sents 黄口小儿 huángkǒuxiǎo'ér infant; immature youth A young child; also used as a derogatory term for an ignorant or inexperienced young person. Literally refers to the yellow beak of a fledgling bird.黄口孺子 huángkǒurúzǐ immature person an immature person or a suckling child; a greenhorn