快嘴 Traditional form: 快嘴 Pinyin (reading): kuàizuǐ Definitions: unable to keep one's thoughts to oneself blabbermouth CL:張/张 (zhāng) Characters: 快 - speedy, rapid, quick; soon 嘴 - mouth, lips Traditional characters: 快 - speedy, rapid, quick; soon 嘴 - mouth, lips