wacko
- Answer SCREWBALL
- Answer BANANAS
- Answer DAFT
- Answer DERANGED
- Answer DITSY
- Answer GOOFY
- Answer HEADCASE
- Answer INSANE
- Answer KOOK
- Answer LOCO
- Answer LOON
- Answer LOONEY
- Answer LOONY
- Answer LUNATIC
- Answer MAD
- Answer MANIAC
- Answer NUT
- Answer NUTJOB
- Answer NUTS
- Answer NUTSY
- Answer QUEERDUCK
- Answer UNHINGED
- Answer ZANY