The soup gargles and slaps on the stove when it boils over as an example of

The description of the soup "gargling and slapping" on the stove when it boils over is an example of personification. Personification is a literary device in which human qualities or characteristics are attributed to non-human entities or inanimate objects. In this case, the soup is given human-like actions and sounds, which helps to create a vivid and engaging image for the reader.