| loom(noun, slang, sick, mad person) |
| looney(character, dissentient, misfit) |
| looneybin(noun, slang, sick, mad person) |
| loony tune(noun, slang, sick, mad person) |
| luny(noun, slang, sick, mad person) |
| mental(noun, slang, sick, mad person) |
| mental case(expression, character, patient, cuckoo, lamebrain) |
| mishoogeh(noun, slang, sick, mad person) |
| mishugah(noun, slang, sick, mad person) |
| not all there(noun, slang, sick, mad person) |
| nougat(noun, slang, sick, mad person) |
| nut case(expression, idiom, character, dissentient, lamebrain) |
| nuts(noun, slang, sick, mad person) |
| oddity |
| original(character, dissentient, misfit) |
| psychiatric patient(expression, character, dissentient, misfit) |
| raver(character, patient, cuckoo, loony, dissentient) |
| schiz(noun, slang, sick, mad person) |
| schizo(noun, slang, sick, mad person) |
| screw-loose(noun, slang, sick, mad person) |