| loon(noun, slang, sick, mad person) |
| looneybin(noun, slang, sick, mad person) |
| loony(noun, slang, sick, mad person) |
| loony tune(noun, slang, sick, mad person) |
| luny(noun, slang, sick, mad person) |
| marmalade(noun, pleasure, delight, taste, sweet) |
| mental(noun, slang, sick, mad person) |
| mishoogeh(noun, slang, sick, mad person) |
| mishugah(noun, slang, sick, mad person) |
| not all there(noun, slang, sick, mad person) |
| nut(noun, slang, sick, mad person) |
| nutcase(noun, slang, sick, mad person) |
| nutjob(noun, slang, sick, mad person) |
| nuts(noun, slang, sick, mad person) |
| nutter(noun, slang, sick, mad person) |
| plum(noun, pleasure, delight, taste, sweet) |
| schiz(noun, slang, sick, mad person) |
| schizo(noun, slang, sick, mad person) |
| screw-loose(noun, slang, sick, mad person) |
| screwball(noun, slang, sick, mad person) |