The song "Great Green Gobs of Greasy, Grimy Gopher Guts" is a children's public domain playground song popular throughout the United States. Dating back to at least the mid-20th century, the song is sung to the tune of "The Old Gray Mare". The song, especially popular in school lunchrooms and at summer camps, presents macabre horrors through cheerful comedy while allowing children to explore taboo images and words especially as they relate to standards of cleanliness and dining. Many local and regional variations of the lyrics exist, but whatever variant, they always entail extensive use of the literary phonetic device known as an alliteration which helps to provide an amusing description of animal body parts and fluids not normally consumed by Americans.