Possible Clues:

• Some following last character that's clownish
• Comically idiotic
• Crazy unknown, no particular one
• A letter at last, and any more for the funny fellow
• Like some Steve Martin humor
• Groucho-like
• At last the letter might get any more to make it so dotty
• Like Stooges shorts
• Stooges shorts, e.g.
• Bizarrely comic