Reference to a scene in The Simpsons season 5 episode 19 "Sweet Seymour Skinner's Baadasssss Song".
Marge Simpson offers her son Bart a large potato for his show-and-tell at school. Bart asks why she's always trying to give him potatoes, to which she looks at it and cheerily states, "I just think they're neat!"
- Screencap via Frinkiac