| psycho(adjective, silly, foolish, crazy) |
| unusual(adjective, beat, wild, strange, foolish) |
| bedlamite(adjective, simple, silly, foolish, crazy) |
| flipped(adjective, wild, enthusiastic, silly, foolish) |
| gung ho(expression, adjective, keen, warm, passionate) |
| unzipped(adjective, slang, crazy) |
| ape(silly, foolish, crazy, insane) |
| bats in the belfry(expression, idiom, silly, foolish) |
| cock-eyed(adjective, slang, crazy) |
| doolally(adjective, slang, crazy) |
| flipped out(expression, silly, foolish, crazy) |
| freaked out(expression, adjective, wild, enthusiastic, silly) |
| mad as a March hare(expression, idiom, silly, foolish) |
| mad as a hatter(expression, adjective, idiom, silly, foolish) |
| mentally strange(expression, silly, foolish, insane) |
| nutty as fruitcake(expression, idiom, silly, foolish) |
| schizo(adjective, silly, foolish, insane) |
| screw loose(expression, silly, foolish, insane) |
| unscrewed(adjective, slang, crazy) |
| dingy(silly, foolish, insane, unwise) |