wacko or whacko /wakˈō/ (slang)

1. Mad
2. Eccentric

A deranged or eccentric person

• springkeeper
• springkeepers
• springle
• springles
• springless
• springlet
• springlets
• spring ligament
• spring ligaments
• springlike
• spring line
• spring lines
• spring-loaded
• spring lock
• spring locks
• spring mattress
• spring mattresses
• spring onion
• spring onions
• spring peeper
• spring peepers
• spring roll
• spring rolls
• springs
• spring scale