A dissatisfied donkey named Burnellus embarks on a quest to lengthen his tail, only to find himself entangled in a series of misadventures that expose the absurdities of medieval society. Driven by a desire for physical transformation and social advancement, the protagonist encounters various obstacles that highlight the folly of human ambition. The narrative, written in Latin verse, utilizes the beast epic tradition to mirror the structures of twelfth-century life. Through a blend of picaresque movement and didactic digressions, the text critiques the intellectual and ecclesiastical institutions of the era.

Scholars and readers frequently highlight the work as a significant bridge between classical beast fables and the later satirical traditions of Chaucer and Gower. Discussion often centers on the effectiveness of the donkey's quest as a vehicle for social critique, noting how the absurdity of the premise allows for sharp commentary on institutional greed. Critics emphasize the importance of the text in understanding the cultural and political climate of twelfth-century Canterbury. The balance between the lighthearted narrative of the donkey and the dense, rhetorical passages remains a primary focus for those analyzing the evolution of medieval humor. Readers often appreciate the historical context provided by the translation, which clarifies the complex political references embedded within the satire.