'Péi xiào liǎn' literally means 'to compensate with a smile' — the character 赔 (péi) implies offering something to make up for a situation, 笑 (xiào) means 'smile', and 脸 (liǎn) means 'face'. Together, they describe the act of forcing or putting on a smile not out of genuine amusement or warmth, but to appease someone, smooth over tension, or avoid conflict — often when one feels embarrassed, guilty, subordinate, or anxious about disapproval.

This expression carries a subtle nuance of discomfort or reluctance; the smile is performative, not sincere. It’s commonly used in interpersonal situations involving authority figures (e.g., bosses, elders), service interactions, or after making a mistake. Unlike neutral terms like 'smile', 赔笑脸 conveys emotional effort and social pressure — it suggests the smiler is sacrificing authenticity for harmony or self-preservation.