| Bats |
| Daft |
| Clown |
| Wacko |
| Wacky |
| Crazy |
| Kooky |
| Silly |
| Madcap |
| Whacky |
| Absurd |
| Comical |
| Bonkers |
| Idiotic |
| Buffoon |
| Marxist? |
| Clownish |
| Screwball |
| Simpleton |
| Wild _____ |
| Like Harpo |
| Buffoonish |
| Outlandish |
| Off the wall |
| Groucho-like |
| Jack-pudding |
| Really kooky |
| Really wacky |
| Merry-andrew |
| Totally goofy |
| Foolish fellow |
| Wild and crazy |
| Amusingly wacko |
| Comically loony |
| Like the Marxes |
| Clownishly funny |
| Monty Pythonesque |
| A bit off-the-wall |
| Harpo Marx, for one |
| Like Stooges shorts |
| Prone to buffoonery |
| Whimsically comical |
| Amusingly eccentric |
| Comically outlandish |
| Madcap, like a clown |
| Outlandishly comical |
| Stooges shorts, e.g. |
| Left-field — foolish |
| Comically off-the-wall |
| Like the Keystone Kops |
| Like the Marx Brothers |
| Phyllis Diller, for one |
| Like Jim Carrey comedies |
| Wild and crazy, as a clown |
| Like much Gene Wilder humor |
| Like some Steve Martin humor |
| Like the Marx Brothers' comedies |