饿狼 literally means 'hungry wolf' — combining 饿 (è), meaning 'hungry', and 狼 (láng), meaning 'wolf'. As a compound noun, it evokes the image of a ravenous, desperate predator, emphasizing extreme hunger and raw instinct. While it can refer literally to a starving wolf in ecological or literary contexts, it is far more commonly used metaphorically.

In everyday usage, 饿狼 functions as a vivid simile or metaphor for someone driven by intense, often unchecked greed — whether for money, power, food, or attention. It carries strong negative connotations, suggesting ruthlessness, impulsiveness, and lack of restraint. The term appears frequently in idioms (e.g., 饿狼扑食, 'a hungry wolf pouncing on prey'), news commentary, and informal speech to criticize exploitative behavior or overwhelming desire.