On the Commode Again….
Explanation: This joke is a playful twist on Willie Nelson’s famous song “On the Road Again.” The punchline, “On the Commode Again,” humorously replaces “road” with “commode,” a colloquial term for a toilet. This creates a funny connection between the song’s theme of travel and the relatable situation of having diarrhea, making it both clever and lighthearted.