Why does miss aggy say hold dog in old story time?

In the story, Miss Aggy uses the phrase "hold dog" to convey a sense of urgency or caution. It serves as a metaphorical warning, suggesting that one should be careful or attentive to the situation at hand. This expression reflects the cultural nuances and wisdom passed down through generations, emphasizing the importance of being aware of one's surroundings. Ultimately, it encapsulates the themes of vigilance and the need to navigate life's challenges wisely.