1. A person who is regarded as eccentric or mad
   - nutter [Brit], whacko, basket case, nutbar [N. Amer], nutcake [US], nutjob, whackjob [N. Amer], mentalist [Brit]

Derived forms: wackoes, wackos

Type of: dag [Austral, NZ], eccentric, eccentric person, flake, geek, oddball

Encyclopedia: Wacko

• order Saprolegniales
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