烤鸭 refers to Peking duck, a world-famous Chinese dish of whole roasted duck with crispy skin, typically served with pancakes, scallions, and hoisin sauce. As a verb-object compound (烤 + 鸭), it can also mean 'to roast duck', and in this use it is separable, allowing insertion between the syllables (e.g., 烤了一只鸭 'roasted a duck').