‘又哭又闹’ is a reduplicative verb phrase meaning 'crying and throwing a tantrum'—typically describing loud, emotionally uncontrolled behavior, especially by young children or people acting immaturely under stress. The structure ‘又…又…’ (yòu… yòu…) expresses simultaneous occurrence: the two actions (crying and making a scene) happen together and reinforce each other. Each character contributes directly: 又 means 'also' or 'again', used here to link parallel actions; 哭 means 'to cry'; 闹 means 'to make noise', 'to cause trouble', or 'to throw a fit'. Together, they form an idiomatic, vivid expression emphasizing emotional outburst with both vocal and behavioral components.

This phrase is commonly used in informal spoken Mandarin and descriptive writing. It carries a mildly negative or disapproving tone—implying the behavior is excessive, unreasonable, or attention-seeking. It’s rarely used for adults in formal contexts unless humorously or critically. While it can describe pets (e.g., a distressed dog), its primary domain is human emotional behavior, especially in family or childcare settings.