wacko or whacko /wakˈō/ (slang)

1. Mad
2. Eccentric

A deranged or eccentric person

• stamp mills
• stamp note
• stamp notes
• stamp of approval
• stamp office
• stamp offices
• stamp out
• stamp paper
• stamp papers
• stamps
• stance
• stances
• stanch
• stanchable
• stanched
• stanchel
• stancher
• stanchers
• stanches
• stanchest
• stanching
• stanchings
• stanchion
• stanchioned
• stanchioning