| 狂う | Someone who has been insane since childhood. Ted Bundy or whoever. They might seem normal at first. $$$ |
| きちがい | Crazy fucker. Discriminatory term against the mentally ill. One of the worst insults in Japanese. |
| いってる | Someone who is obviously nuts – a street person with Hefty Bag shoes or whoever. $$$ |
| 発狂 | Someone who is normally sane but had a breakdown from stress, or a sudden flip-out. |
KANJIDAMAGE