[US] A person who is regarded as eccentric or mad - nutter [Brit], wacko, whacko, basket case, nutbar [N. Amer], nutjob, whackjob [N. Amer], mentalist [Brit]
Cake made with nuts
Adjective: nutcake Usage: US
Crazy "Freedom to use any nutcake idea proved irresistible" - nutbar [N. Amer]
Derived forms: nutcakes
Type of: dag [Austral, NZ], eccentric, eccentric person, flake, geek, oddball