| frenzied(crazy, hysterical, psychotic) |
| fruit cake(expression, crazy, mad, insane) |
| hysterical(crazy, psychotic) |
| in the ozone(expression, crazy, hysterical, lunatic, psychotic) |
| loose in the bean(expression, crazy, mad, insane) |
| loose in the upper storey(expression, crazy, mad, insane) |
| lost one's mind(expression, crazy, mad, insane) |
| lost your marbles(expression, crazy, mad, insane) |
| lost your mind(expression, crazy, mad, insane) |
| mad as a cut snake(expression, crazy, mad, insane) |
| mad as a hatter(expression, crazy, sick, hacked, lunatic) |
| mad as a meat axe(expression, crazy, mad, insane) |
| maniac(adjective, crazy, sick, sane, hysterical) |
| manic(crazy, hysterical, psychotic) |
| mentally ill(expression, adjective, crazy, sick, sane) |
| moonstruck(adjective, insane, sane) |
| non compos mentis(expression, adjective, law, crazy, sane) |
| not all there(expression, idiom, crazy, sick, off) |
| not right in the head(expression, crazy, mad, insane) |
| nothing upstairs(expression, crazy, mad, insane) |