‘胁肩’ is a classical Chinese verb meaning to hunch or draw up one’s shoulders, typically as a physical manifestation of fear, nervousness, deference, or subservience. The character 胁 (xié) originally refers to the ribs or side of the torso — symbolizing vulnerability or constraint — while 肩 (jiān) means ‘shoulder’. Together, they evoke the image of someone contracting their upper body inward, as if trying to make themselves smaller or less conspicuous in the presence of authority or danger.

This expression carries a strong literary and slightly formal or critical tone; it often appears in written descriptions of timid, obsequious, or anxious behavior — especially in historical narratives, essays, or satirical contexts. It is rarely used in casual spoken Mandarin and is more common in fixed phrases like 胁肩谄笑 (hunching shoulders and smiling sycophantically). Modern speakers may recognize it primarily through reading or idioms rather than daily conversation.