'Bird appearance' — literally 'bird' (鸟) plus 'appearance/state' (样) — is a coarse, slangy noun used to describe something in a lousy, pathetic, or utterly messed-up condition. Though 鸟 (diǎo) originally means 'bird', here it functions as a vulgar euphemism for a taboo anatomical term, lending strong derogatory force to the phrase. The word carries heavy informal and often mocking connotations, implying not just poor quality but also absurdity, failure, or humiliation.

This expression is almost exclusively used in spoken, colloquial Mandarin among peers — never in formal writing, polite conversation, or with superiors. It frequently appears in complaints, sarcasm, or self-deprecating humor ('My laptop’s in bird shape again!'), and its tone ranges from frustrated to darkly humorous depending on context and delivery.