If you are taking about the episode title... there are several one word titles but if you somehow mean the least amount of letters, there's an episode titled HOMR (with the 'R' written backwards)
If you mean shortest in length, every episode is usually 20-21 minutes in length when you cut out commercials. If you cut out the opening and closing credits they may be shorter.
Chat with our AI personalities
CABF17 Simpsons Tall Tales
The Simpsons' episode with the Cannibal Chef called "Dark Stanley" has the Name "Yokel Chords".
season 11 episode missionary impossible
This episode parodied Mary Poppins.
It's the 17th episode in the 18th season.