扔下 (rēng xià) is a compound verb meaning 'to abandon' or 'to leave behind'—often with a sense of suddenness, carelessness, or emotional detachment. The first character 扔 (rēng) means 'to throw' or 'to toss', while 下 (xià) indicates direction downward or completion, reinforcing the idea of discarding something definitively. Together, they convey physically or figuratively casting something—or someone—aside without further concern.

This verb is commonly used in contexts involving neglect, desertion, or impulsive departure: for example, abandoning a pet, dropping responsibilities, or walking away from a relationship. It carries a negative connotation and often implies moral judgment or emotional weight. While it can be used literally (e.g., throwing down an object), its most frequent and impactful usage is figurative—especially when describing abandonment of people, animals, or duties. It appears frequently in storytelling, news reports about animal cruelty, or discussions of social responsibility.