Sugar by The Hails tells the story of a girl named Jackie who grew up without her father and lives a wild and unpredictable life. The narrator of the song talks about their relationship with Jackie and how they tried to warn her about the dangers of certain behaviors, specifically the "sugar" that left her mouth dry. Despite their warnings, Jackie continues down this path and ultimately leaves the narrator with a broken mind. The song also touches on themes of freedom and escape, as Jackie takes off on a Greyhound bus and fights to maintain her independence. However, the narrator is left to deal with the fallout of their relationship and struggles to move on. Overall, Sugar is a poignant and melancholic song that explores the complexities of relationships and the consequences of living a fast and dangerous lifestyle.