憋笑 is a verb meaning 'to suppress or hold back laughter' — literally combining 憋 (to hold in, restrain, stifle) and 笑 (to laugh). It describes the physical and emotional effort of keeping laughter from escaping, often when something is funny but inappropriate to laugh at — such as during a serious meeting, a solemn ceremony, or while trying not to disturb others. The action usually involves facial tension, covering the mouth, turning away, or biting one’s lip.

This word carries a slightly informal, everyday register and often implies amusement mixed with self-control or social awareness. It’s commonly used in spoken Chinese and descriptive writing, especially when narrating humorous or awkward moments. Unlike generic terms for 'laughing', 憋笑 emphasizes the active suppression, making it vivid and expressive — frequently appearing in stories, dialogues, and social media captions describing relatable, cringe-funny situations.