The episode: “The Touch of Satan,” ep. 908 (Note: Two riffs in a row for this episode because I love how obscure this one is.)
The riff: Inserted by Tom at the end of the sweaty farmer’s sentence, after he exclaims “Oh, bosh!” in an incredulous way, as if saying “poppycock.”
The explanation: They’re referring to 15th century Dutch painter Hieronymus Bosch, a fabulist known for his depictions of religious imagery such as heaven and hell. His best known work, “The Garden of Earthly Delights,” was a three-panel triptych depicting creation, life on Earth and the punishments awaiting sinners in Hell. Bosch was also an extremely talented sketch artist and portrait painter, although he is mostly remembered for his religious pieces today.
Novelty factor: Despite the fact that I am not a fine arts buff, I’ve still always understood this riff. Similar to the woodcuts of Albrecht Durer, I’ve always just liked Bosch’s romantic imagery.