| bats in the belfry(expression, adjective, idiom, wild, silly) |
| flipped out(expression, adjective, silly, foolish, mad) |
| freaked out(expression, adjective, silly, foolish, mad) |
| mad as a hatter(expression, adjective, idiom, wild, silly) |
| mentally strange(expression, adjective, silly, foolish, mad) |
| nutty as fruitcake(expression, adjective, idiom, wild, silly) |
| of unsound mind(expression, adjective, idiom, wild, silly) |
| out to lunch(expression, adjective, idiom, wild, silly) |
| potty(adjective, wild, silly, foolish, mad) |
| round the bend(expression, adjective, idiom, wild, silly) |
| schizo(adjective, wild, silly, foolish, mad) |
| screw loose(expression, adjective, wild, silly, foolish) |
| unglued(adjective, wild, silly, foolish, mad) |
| ape(adjective, silly, foolish, mad, insane) |
| aper(adjective, silly, mad, confused, insane) |
| barmy(adjective, silly, foolish, mad, insane) |
| batty(adjective, silly, foolish, mad, insane) |
| berserk(adjective, silly, foolish, mad, insane) |
| bonkers(adjective, silly, foolish, mad, insane) |
| cracked(adjective, silly, foolish, mad, insane) |